Reliable Power Anytime, Anywhere
Jackery Explorer 300 Portable Power Station delivers dependable 293Wh backup power for your outdoor adventures, off-grid travel, or emergency home backup. With dual Pure Sine Wave AC outlets, fast USB-C PD port, and solar compatibility, it’s built for ultimate versatility.
Key Features:
- Fast Recharging: Recharge 80% in just 2 hours via wall outlet & USB-C PD.
- Compact & Lightweight: Weighs only 7.1 lbs — portable power on the go.
- Multiple Outputs: Power up to 6 devices simultaneously (AC, USB-A, USB-C, DC).
- Solar Compatible: Works with Jackery SolarSaga 100 for eco-friendly charging.
- Safe Power: Built-in battery management system ensures device protection.
Technical Specifications:
| Battery Capacity: | 293Wh (20.4Ah, 14.4V) |
| AC Output: | 110V, 300W (Peak 500W) |
| USB Ports: | 1x USB-C PD 60W, 2x USB-A (QC 3.0 & 5V/2.4A) |
| Car Port: | 12V/10A |
| Weight: | 7.1 lbs |
| Dimensions: | 9.1″ x 5.2″ x 7.8″ |
| Operating Temp: | -10°C to 40°C |
What’s Included:
- 1× Jackery Explorer 300
- 1× AC Adapter
- 1× Car Charger Cable
- 1× User Manual
Perfect For:
Camping | Road Trips | Outdoor Work | Blackouts | Emergency Backup | Off-Grid Living
I kept track of our sales in a notebook.
For the past several years, I have used a laptop to record our sales, and now I use an iPad. With both, I had a problem keeping the laptop and then the iPad charged.
Our Farmer’s Market lasts for four hours on Saturdays, and I use the E300 to power my iPad, a Square card reader, a video camera, and calculator.
Instead of worrying about loss of power, at the end of the Market Day, my Jackery E300 still has 84 to 87% of power left.
Buying the E300 solved that problem so well, I bought another E300 in case of a power outage at home.
I use this during my inspections to keep my tools charged and ready for use.
When the power goes out at home, I plug my tv, router, and modem into this little guy and enjoy my favorite program.
This unit charges quick and I like the solar panel to help keep things charged.
Know your power requirements and what you're using this unit for. No matter what brand you buy, that is best rule of thumb.
The instructions are in Chinese English and not much help. Also, I have NO idea why it's marketed as a "solar generator". It is NOT a generator and doesn't have ANY solar capabilities other than you can connect a solar panel to it to charge it. It's a portable DC power pack with a built-in inverter to also provide 120V AC current via normal household plugs, in addition to 3 DC USB outlets and a DC car plug.
Testing it out with a full charge I slept for 5 hours and I do not use my heat chamber.
It used 35% of the battery.
With the good sale price I'm pleased. 👍🏼
Plan to buy a second one.
It's not too heavy and handy for charging LED emergency lights and cellphones. It's perfect for powering fans and recharging. A great emergency must have item.
My phones, my kindles, show and fire 10 kindle. Some lights but not my toaster oven. I am happy.
We powered a speaker, LED lights, lasers, a laptop, and a DJ mixing board. For six hours of non stop music and fun.
I have charged my power tools batteries when working at a construction sight with no power.
It powered two fans in our tent all night long to help keep us cool. With charge leftover in the morning to run our small electric hot plate for coffee while camping.
I would use the solar panel as a sun shade in my truck while it charged the battery pack. When I was able to get 90+ watts out of the panel. It would charge the battery pack almost as fast as if it was plugged into the wall.
It is really easy to use and setup. I was able to charge the battery pack with the solar panel while also charging other items off of the battery pack. It is small and light weight. The solar panel lays flat with storage for all.of the cords. The only thing I regret about purchasing this one. Was that I did not purchase the bigger one.
I read the instructions and here's some initial observations and contradictions of what I saw advertised above:
-- This Power Station is 300 watts (which is fine for my application). I've seen several reviews stating that this is 'junk' because it won't power their tea kettle, induction burner, hair dryer, portable heater. Most (if not all) of those are over 300 watts, so the Power Station will shut off and not power those devices.
-- The instructions also state that the power station will go into battery save mode and turn off if it detects less than 10 watts for a certain period of time.
-- Each output power option (USB, AC, Car) has a power button with a light on it. If it's turned on and you are not using it, it will drain the battery faster. So when storing, make sure those are turned off. I think the battery will still drain but at a slower pace, as the instructions say to charge the battery every 90 days when not in use.
-- There is conflicting information about the description of the item and one of the photos. Yes, you are able to charge the battery and use the power station at the same time. The instructions, though, state that this is not recommended as it will decrease the health of the battery. I saw a picture above with the solar panel and charging a laptop and cell phone at the same time. According to the instructions, this is not recommended.
-- I saw the newer update of this power station. I opted to get this one because extended warranties have come in handy in my household. The newer model has a 1-year extended warranty and I can get a 4-year extended warranty with this one. I didn't know at the time that the instructions state that it has a 2-3 year warranty. I am not sure which one, because one page states that the power station has a 2 year warranty. On another page, it states in order to get warranty service, I need to register the product. After I register, it states that i get 'the full 36 month warranty'.
I will update this review once I've had the power station for a few months and will report on whether I've had issues with the battery draining too fast, or other things that have been mentioned.
I ended up using it when I lost power for a week. I would charge it at work then use it to run my CPAP overnight. It has enough power to also run a USB mini fan all night.
I love that it includes the 12v charger so you can recharge while driving if you are camping or traveling.
The original was taken by porch pirates while I was in hospital and my wife never saw it. Jackery earned a customer by investigating and sending out another for us.
Recently I decided, while camping, to try charging the power bank using the cigarette lighter option. Plugged in the cord, and there was no response on the power bank. How disappointing!
When I got home I checked around to see if I was missing anything (operator error), and it looked like I was doing things right, so I contacted Jackery support. We exchanged a few emails, I received a new power cord today, just tried it out, and it works! Let's keep in mind that I bought the power bank and the solar panel in August 2021, and today is October 21, 2024 -- and they replaced the power cord completely free of charge.
Excellent product, excellent service. Thank you, Jackery.
I did try to tv, but the firestick took up way too much energy so I just streamed on my laptop.
If you want something to power heavy duty devices, this is not it. But if you just need a few basic items, this one works great. It’s also small, quiet, and doesn’t weigh a ton. Very happy with this purchase.
to use with it. It makes me feel more secure about power outages. I just received it so have not had a great deal of experience with it. However, I watched a presentation where five power stations were tested and this one had the most power output of the five, so I chose it.
The power station was able to charge multiple phones at once. However, it does get warm to the touch when in use, and I was camping in the desert, where it was already hot in the tent during the day, so I limited my use of the station to the evenings when it was cooled down. If you were camping in cold weather, the warmth from the unit might be nice.
The display clearly shows how much power you have left by providing a %.
The unit was a little heavier than I expected, but reasonable. For this first use, I camped next to my car, so I didn't need to carry it far. However, I did put it in a backpack and walked around a bit to see if it would be a burden to pack it on a longer hike. In the bottom of my pack, it was balanced, and while somewhat heavy, it probably would have been worth it to pack around to make sure I had power for multiple days.
The only downside I found is that there isn't an automatic shutoff. Each of the different charging ports has its own power button, and you have to make sure to turn it off, or it will continue to trickle charge.
Overall, I am very satisfied with the purchase. I don't know if I will buy the solar charging accessory, but it is nice knowing that it is an option and that this device will work with that technology.
The props on the back of the pamels may be OK but I can see them wearing out over time. The magnets used to close the panels are great. The LCD display is exactly whats neede as well so there's no question as to what is going on.
Taking this camping on an island with plenty of sun is going to be great.
One thing to note; when you are charging, either with 110 or the solar panel, somewhere after it reaches 90% the input watts will start dropping. When the charge reaches 100% the input watts will be 0. Keep that in mind if you're using the input watts display to position the panels. When I first hooked up the panel the battery was 98% charged and it only registered 20 watts input making me think it wasn't working.
UPDATE!!! I have changed my review from a 1 star to a 5 Star! After I contacted Jackery they were more than pleasant to deal with. I videoed the machine and how it was not charging. They sent me a return label,. I sent it to them, and about 3 weeks later I have a brand new jackery 300 in the box! I am very pleased with this company!!! you can't ask from more than that!!
I decided to stay adaptable and so I picked up a unit and 100w solar panel. The timing was rather great, as I had a power outage right after. I get a lot of sun here, and was able to charge one up in about 4 to 5 hours.
I liked it so much I bought another. Then I bought the 500, and still don’t like it very much, so picked up a third 300 and now I run my internet off one while charging devices on a second and then using my laptop with a third while the spare charges.
I absolutely love these. The 300 is super portable, even for my 60 year old or so self, and they charge super fast. They are really quiet, too — even when the fan comes on, it is short, and very soft. The quality of the units is really great — very sturdy. I would suggest a cover for them if you go to places where it rains a lot or is very, very dusty though.
Their capacity is great — my cable modem and WiFi last an entire day and night on one — turn it off, and you can get two days out of it! The solar panel is great — I get 70 w pretty consistently out of it, and on the 500 it is much slower at 50 watts. I did get a second panel, but not by the same folks, so I can keep up with charging.
One of the standout features of the Jackery Explorer 300 is its 110V/300W pure sine wave AC outlet. This clean and stable power source is perfect for charging a wide range of devices, from laptops and cameras to small appliances. Whether you're working remotely from your campsite or need to power essential appliances during a blackout, this portable power station has got you covered.
Here are some key highlights of the Jackery Explorer 300:
Impressive Battery Capacity: With a 293Wh capacity, this power station can charge your smartphone multiple times, run a mini-fridge for hours, or power a CPAP machine for those who need it. It's versatile and can meet various power needs.
Multiple Charging Options: The Explorer 300 offers a variety of charging options, including a 12V carport, AC outlet, and dual USB-A and USB-C ports. You can recharge it via a wall outlet or pair it with compatible solar panels for eco-friendly power generation (solar panel not included).
User-Friendly Design: The unit is sleek, compact, and relatively lightweight, making it easy to transport. It's perfect for camping trips, RV adventures, and even for powering your gadgets at outdoor events.
Quiet and Efficient: The pure sine wave technology ensures clean, silent power without any annoying humming or interference. Plus, its energy-efficient design maximizes runtime.
Reliable and Safe: Jackery is known for its commitment to quality and safety. The Explorer 300 is equipped with multiple protection features, such as overcurrent and overvoltage protection, ensuring your devices stay safe during operation.
Versatile Applications: This power station is not limited to outdoor activities. It's also an excellent choice for emergency preparedness, providing a lifeline during power outages or natural disasters.
The only downside, if any, is that the solar panel is not included, so you'll need to purchase one separately if you want to harness solar energy to recharge the Explorer 300. However, this is a minor quibble, as the unit performs exceptionally well on its own.
In conclusion, the Jackery Portable Power Station Explorer 300 is a must-have for outdoor enthusiasts and those who want peace of mind during emergencies. Its reliable, clean power source, impressive battery capacity, and user-friendly design make it a top choice in the portable power station market. Whether you're camping, traveling, or bracing for a blackout, this Jackery power station is your reliable companion. Highly recommended
If you were only trying to keep a few phones charged for a few days, say camping or something, I'm sure you could do that just fine.
I love the size of it and the handle does indeed make it really great to grab and go. I also appreciate that they supplied a wall charger AND car charger to keep it juiced up.
Yesterday, I charged my laptop, my phone, and someone else's phone with it. It felt good to be the guy that supplies power in a situation where we had none otherwise. Paired with my phone's hotspot, I can literally work just about anywhere now and that feels really empowering.
I sprung for this brand because I've seen Linus Tech Tips advertise them a lot on YouTube. I'm sure some or maybe all of the times they were sponsored to do so. But, it seemed like they were genuinely impressed and enjoying these products. Not just reading from a script that made them feel like they had to say good things.
High Capacity and Performance: With 293Wh, this power station has proven to be more than adequate for our needs. From charging phones to powering lights, it can handle multiple tasks simultaneously.
Fan Friendly: What surprised and impressed me is its ability to run a fan in the tent. It's a nice luxury to have, especially on those warm summer nights.
Portable and Convenient: Its design is perfect for outdoor use. Easy to carry and robust, it can be set up anywhere around the campsite.
Multiple Charging Options: With different ports, it can charge various devices simultaneously. This makes it versatile and handy for all our tech gadgets.
Easy to Use: The Jackery Explorer 300 is user-friendly and doesn't require any complicated setup. Even if you're new to portable power stations, you'll find it intuitive to use.
Durable and Well-Built: It's evident that the device is made to last and withstand outdoor conditions. I appreciate its sturdiness, and it has proven to be reliable throughout our trips.
Eco-Friendly: Using a backup lithium battery means less reliance on disposable batteries, contributing to a more environmentally responsible camping experience.
Summary: The Jackery Portable Power Station Explorer 300 has been an excellent addition to our camping gear. It's a versatile, powerful, and convenient solution for powering up all our essential gadgets. Whether it's keeping our phones charged or adding the comfort of a fan in our tent, this device has been up to the task. If you're an outdoor enthusiast looking for a reliable power solution that will never let you down, I highly recommend giving the Jackery Explorer 300 a try. It has transformed our camping experience and could very well do the same for you!
First and foremost, the Explorer 300 delivers an impressive amount of power. With a capacity of 293 watt-hours and a pure sine wave inverter, it can handle a wide range of devices, from smartphones and tablets to laptops, cameras, and even small appliances. I was pleasantly surprised by its ability to charge multiple devices simultaneously without any loss in performance.
The design of the Explorer 300 is sleek and compact, making it incredibly portable. It weighs just under 7 pounds and features a convenient carrying handle, making it easy to transport wherever you go. The durable and rugged exterior ensures that it can withstand the rigors of outdoor use, whether you're camping, hiking, or engaging in any other off-grid activity.
One of the standout features of the Explorer 300 is its versatility. It boasts multiple charging options, including a 12V carport, AC outlet, and three USB ports. Additionally, it supports solar panel charging, allowing you to harness renewable energy and stay powered up even in remote locations. This flexibility is a game-changer, as it provides a reliable power source for extended periods without the need for traditional outlets.
The user-friendly interface of the Explorer 300 deserves special mention. The informative LCD screen provides real-time data on battery level, input/output wattage, and remaining runtime. It also features a user-friendly power button and simple controls for adjusting settings, making it effortless to operate and monitor.
One area where the Explorer 300 truly shines is its impressive battery management system. Equipped with advanced safeguards, such as temperature control, voltage surge protection, and short circuit prevention, it ensures the safety of your devices and the power station itself. I felt confident using it to charge my delicate electronics, knowing that they were protected from potential harm.
While the Explorer 300 is undeniably powerful and reliable, it is not completely silent. The built-in cooling fan can be audible when the unit is under heavy load, although it is not overly disruptive. However, it's worth noting that the noise level is far outweighed by the unit's exceptional performance and capabilities.
In conclusion, the Jackery Portable Power Station Explorer 300 is an outstanding power solution for those who require a reliable, portable, and versatile power source. With its impressive capacity, multiple charging options, and robust build quality, it offers a seamless and worry-free experience for outdoor enthusiasts and emergency preparedness. If you're in need of a portable power station, the Explorer 300 is a worthy investment that will undoubtedly exceed your expectations.
I have a 2kw Chinese diesel heater (the smaller Eberspacher D2 clone, NOT a larger 5kw model being sold as a “2kw”). Both the Jackery 500 & 300 run the diesel heater with no problem. Here are the results with *my setup*:
Jackery Explorer 500:
Highest setting @ 2.7hz
Averaging a 28 watt draw
Power use: 1% every 12.5 minutes.
Estimated runtime down to 25%: 15 hours
Medium setting @ 2.0hz
Averaging a 19 watt draw
Power use: 1% every 19.5 minutes
Estimated runtime down to 25%: 24 hours
Jackery Explorer 300:
Highest setting @ 2.7hz
Averaging a 29 watt draw
Power use: 1% every 6.5 minutes.
Estimated runtime down to 25%: 7.9 hours
Medium setting @ 2.0hz
Averaging a 19 watt draw
Power use: 1% every 10 minutes
Estimated runtime down to 25%: 12 hours
*Keep in mind that every heater is going to have different results depending on model, what controller display it came with and how it is tuned. I have adjusted and leaned out the fuel pump speed thru tuning for use in slightly higher elevations and to help prevent unwanted sooting inside the burn chamber. The larger 5kw models will draw a bit more wattage vs the true smaller 2kw heaters. Also take note that both Explorer 500 & 300 units 12v output CAN handle the diesel heater’s high startup & shutdown power draw. Many other brand SoGens are unable to and shut off.
I also ran my homes WiFi (access point, switch, PoE injector & cable modem) for 9.5 hours straight and took the Explorer 300 down to about 25%. On a fairly clear sunny June day used my Bluetti PV120 foldable solar panel to charge up the 300. The display showed a steady input average of 80+/- watts (then drops down to around 20w once it reaches 85-90%) and took the Explorer 300 from 30% to 100% in under 3 hours. Very happy with this unit. Hope this info helps!
I ordered this as part of a combo with a 100w solarsaga panel. The solar panel has since quit working. I tried dealing directly with Amazon which got me nowhere because it was outside the 30 days. So I contacted the mfr to get a replacement with the 90 day warranty. I sent video proof and they set up to have me ship it to them. They paid shipping but not the packing. They've now had my solar panel for 3 days, shipping to them was 6 days thru FedEx (their choice). I still have no word if or when they will be sending me a replacement. They only state "As soon as a tracking number has been created we will let you know". With the quality of customer service it might be wiser to deal with one of these cheaper brands still trying to make their name.
I love this thing. I live in a tent ⛺️ and this thing keeps my vape, Bluetooth speaker, phone, and lantern charged up. I can charge each of these daily for about a week before a charge is required. I bought the 100w solar panel to go with it and now I am never without power. The solar panel is able to charge this back up to 100% every day while I am at work. I have not used any ports except the USB ports. The USB ports appear to have an auto off when no power is being drawn. The USB-C port does not charge my phone at 45w but at 27w. I thought it was rated for up to 60w but that may be input only.
The only thing I would change is the location of the solar panel port to the side or back.
I would also add a little work light on the handle.
I would definitely recommend an item similar to this one.
Since purchasing the 300 I have now purchased a Jackery 550. I am very disappointed in the 550. The main reasons I’m disappointed are:
The 550 only has one AC outlet versus the 300 has two outlets
The 550 has three standard USB charge points. The maximum wattage per USB port is only 12 watts. The Jackery 300 also has a USB-C port that charges at 100 Watts. This will quickly charge a laptop.
I really like that you can use a standard USB-C charger to charge the Jackery 300 through the unit’s USB-C port. Since the Jackery 500/550 do not have a USB port that excepts a charge, you have to use the brick with the two little big wires coming out all of it to charge the Jackery 550. This is very cumbersome compared to using the USB-C port to charge the unit.
But the last couple years that's been even more important as I was setup with a Cpap machine. We don't own a home generator, or any real backup system. So after hours of debating and reading reviews I chose to buy a Jackery even though there were some one star reviews, because for all the reviews they were above overwhelmingly positive.
So here is my own review. I bought the Jackery 300 and it came to me with a 43% factory charge. I plugged it in and charged it up to 100%. I immediately tested the product that night using my Resmed AirSense 10. For anyone using a Cpap that's one of the newer models in the last couple years. Like a $999 Cpap. I set my humidity and heat both to off and tested it overnight. I also watched the Jackery display here and there. So my Cpap was stably drawing between 9-12 watts from the Jackery on an air pressure of 7-15. Effectively meaning the Jackery can run the Cpap for 24 hours or 3 nights of sleep before needing a recharge as long as it keeps at that watt usage.
I have tested it as well with my Galaxy s10 cell phone. Just checking webpages and Facebook -while charging- it uses 3 watts. Using it for YouTube videos it runs 4-6 watts. Using it for Tiktok it ran up to 8 watts initially and then dropped down to 4-6 watts right after. This thing can run a cell phone for two days straight without dying by those standards, if not more. Though, I wouldn't let the charge go under 20% on the Jackery for healthy battery life.
I'm going camping this week, going to be nice for the first time in awhile having a way to keep my cpap running away from home. As well having a way to charge a phone. So the applications for this are many, but the ones that will help my family the most is for camping trips, long car rides with my teens needing to keep their phones charged without relying on the car battery, and power outages to maintain both cpap for my health as well as cell phones/laptop for entertainment. Even a medium size fan on low runs 29 watts. So a nice way for sone air flow.
I would recommend this product to anyone who camps, travels, deals with power outages, lives off grid, or has an rv and needs a backup option for electricity. I was concerned at the price, but now I'm glad I didn't hold back. Hope it's as helpful to you all and my review gave you some reassurance.
I've been tent camping more and at our home my electric provider has been shutting off power at night for maintenance or wildfire prevention (SoCal) so I've been searching for the best battery pack for my CPAP but also for any other devices I may want to power.
I read reviews on many CPAP-specific battery packs, and they were all around the same cost as this Explorer 300, but much less versatile for powering other devices. One benefit to some CPAP specific battery packs is that they are TSA/FAA approved for commercial flights, however, that was not one of my requirements.
I have the ResMed S9 AutoSet with heated breathing tube set to 80F (Climate Control) and H5i humidifier, and without changing anything on my device, beside the power cord (see below), the Explorer 300 shows I use ~40w when I first put on the mask to go to bed. I saw other reviews state to disable the heated tube and humidifier, but for my initial test, I didn't want to turn these devices off, as I really enjoy sleeping with them enabled.
From reading other reviews, and from the ResMed website, most recommend using the DC car power adapter when powering the S9 from a battery pack, as it's more efficient and will use less power in this configuration. ResMed sells a DC car adapter for a much higher cost than other companies, and many reviews recommended what I ended up buying, the KFD DC Adapter 3 Pin Jack for 90W Resmed S9 from Amazon.
So last night, with the Explorer 300 fully charged, I switched my S9 to the KFD DC adapter and went to bed with the Explorer 300 powering my S9, and after 7-hours asleep, I woke to happily discover that not only did the Explorer 300 still have power remaining, but it only used 20%! There are obviously other variables for each individual, such as what pressure your machine runs at, the surrounding temp/humidity, etc., however, even with these other variables, to me the Explorer 300 is an incredible buy as I now know it can easily power my CPAP machine through multiple night's sleep!
As always, whomever delivers for Amazon never lets us know they left the package on the front door step. Our package was left on the front step during the evening and it was cold (i.e, -10 to -15 F) for how long I wasn't sure. When I opened the package I checked the amount of wattage and surprisingly it was charged. In any case I went ahead and charged it up to full capacity and tested it with various devices such as laptop, phone, and a couple of batteries for my cordless power tools (e.g. leaf blower, drill, etc.). So far SO GOOD...I liked the various plugins including two 110 outlets. It is portable and easy to carry and store. I plan to take it with me on any long trips and loan it out to family to try it out. Of course people should be aware that this is only a minor power source. Today I plan to plug in a regular lamp and see how long it will stay on...It's possible I might get the next model up later....
Update 7/13/2022: After charging the battery to full capacity I attached a small electric fan to see how long it will run. I was surprised to see that the battery did surprisingly well. At 8 a.m. I plugged the fan and began letting it run. At 10 a.m. it dropped down by only 20%. At 1 p.m. I still had 53% left in the battery. By 5 p.m. the fan was still running with 5% left. The fan had three setting (e.g. low, medium, high) and I set it at the medium speed. I'm sold on this model.
This unit and the whole Jackery system are very easy to use, can power a lot of things, recharges fast, is easy to store and transport, and has been an amazing product. Also, the unit is surprisingly light (compared to the deep cycle marine battery I take along to power my CPAP) so it’s easy for everyone in the family to carry and use.
The recharge rate via solar panels varies based on angle of the sun and cloud cover but I was able to charge this unit on a cloudy day in the PNW in a few hours after adjusting the panel direction and angle until I got the best recharge rate I could. Also, you can charge and use it at the same time as long as the draw rate is less than the charge rate which is pretty easy to do.
If you car camp and/or need a portable backup power system, this thing is great and I strongly suggest getting one. This 300 size unit with a 100W panel is the ideal size for car camping and hunting trips in my opinion. You can probably use the 60W panel but it would take longer to charge the unit which may be okay depending on where you’re at and how much sun you get; the 100W panel is a must if you live in the PNW in my opinion.
Why I need this: When I first bought my Trailer I researched online how to use a CPAP off of battery power. The advice I received said I needed a 12V Inverter. In the last 7 years I and my family have lost untold hours of sleep from the inverter overheating, beeping at volume 10 (out of 10), and kicking the loud fan on. Once I switched to the Airsense 10 CPAP, 2 years ago, the inverter really struggled (even though everyone online said the Airsense would use less juice than older CPAPS?). I literally have had to just not use my CPAP on multiple occasions. IMO that is because the Airsense has the technology to increase pressure when it senses the need. But I'm not 100% on that.
USING: I got the Jackery 300 yesterday. [After charging] I used it at home for the night. I wanted to prove it will work before camping with it. I turned off the humidifier, tube temp, and auto start on my CPAP. This morning, after 10-hours of use, I still have 38% battery left (I watched some TV with the CPAP running, to stretch the hours. I didn't sleep 10 hours :-).
My wife and I are all smiles right now. Zero noise power to my CPAP is going to enhance our camping enjoyment exponentially. This is only one trial but I am already excited.
PS -I never boondock without my gas generator. So I will be able to charge this daily. If you don't have charging capability the 500 or 1000 may be better for multiple day use. Since I camp in the woods I don't want to rely upon Solar power. Too many trees=shade=no power generation from the sun.
I thought a lot about whether to get a unit like the Jackery 300, or something with a bigger capacity like the 500 or 1000 given the other devices I’d like to power. Ultimately I decided to start small, but really I had no idea what this would mean in terms of what it’s battery capacity would actually be able to do.
I’ve tested the 300 for a few nights with my Resmed Airsense 10 CPAP. With humidity on, one night pulled 53% of the 300’s battery (when plugged in to the AC output). Without humidity, it pulled 20% of the battery (again from the AC output).
I’ve ordered a DC adapter that’s compatible with my CPAP, which decreases battery usage substantially (https://www.amazon.com/gp/aw/d/B07P6H994Q?psc=1&ref=ppx_pop_mob_b_asin_title) . This is the way to go! With humidity off, one night of CPAP use only used 13% of the Jackery! With humidity on, it used 33%. From now on, I’ll be using the DC charger with humidity off: so the CPAP will only be a small part of what I can use the Jackery for while I camp.
For CPAP only, with the DC charger, I should expect to get 7-8 nights sleep with this Jackery. That’s substantial!
Since I’m completely new to thinking about batteries and solar generators, it’s interesting to see what kinds of devices are power hungry and which aren’t. Right now, my conclusion is that the Jackery 500 or 1000 would be the best choice if you need to power something 24/7 like a fridge, or something with a higher watt needs (like an Instant Pot). But for smaller needs, the 300 still packs a ton of capacity (I charged my iPhone XR, and it used up only 4% of the Jackery).
Another piece of good news is that the fast charging capability of the Jackery is fantastic. Plugging the Jackery in using both its power adapter and a 60W usb charger really did fully charge it within a few hours. My sense is that this will be a great feature when I’m in situations where I’ll periodically have access to power.
So far, I think I made the right choice by starting small with the 300. If my needs evolve to bringing a powered fridge, or wanting to do much longer trips, I can look to upsize then.
I was using several digital camera bodies and a lot of related gear to take photos, very long exposures, time lapses etc., and needed a charged laptop to process them every night at a campsite. I kept the Jackery plugged into an outlet in the back of my SUV (but any cigarette lighter socket will do fine), which charged it every time I drove someplace or ran the engine, and was able to keep my laptop, several camera batteries, some LED lights, and a tablet charged for 4-5 days with no trouble. Charging time is pretty good, it is easy to use, and even in situations where the car was not recharging the unit for 24 hours I never went below a 50% charge on the Jackery. It is well designed, and comes with the needed cables in a separate pouch (a nice touch). This model (Explorer 300) struck a good balance of size/weight and capacity for my electronics-centric use, but I was not running anything very power-hungry.
Key point for time-lapsers and the like: the Jackery keeps putting out power even if nothing is drawing it. I'd imagine that could lead to unwanted depletion, but for me this is a feature, not a bug. Most battery packs will shut off if there is not a threshold level of power draw for 5-20 minutes -- if you are using a setup that draws low power or draws intermittently, this is key. I was using a Tethwertools Case Relay system, which has an internal battery and thus does not draw constantly. Almost none of my existing power blocks would work in this situation (I could only find one brand that fit my needs: Voltaic Systems), but the Jackery was great (and would have powered my rig for days if I was inclined to try that).
Jackery says the device is not weather resistant. I did not put this to the test. But a bit of sealing against moisture would be a welcome addition in future models.
1. Solar Charging, I have charged my Jackery 300 5 different times using my SolarSaga 60 panel. I have seen peak charging of 44 watts. Each time it charged in less than 4 hours. Several times I did pass through charging, that test was the SolarSaga 60 plugged into the Jackery 300 which had a Jackery 160 plugged in or some other device. That test work great as well. Solar Charging with the Jackery 300 has been fantastic.
2. DC Devices, I have used my Jackery 300 to run my Alpicool refrigerator for 1 solid week as a refrigerator and one solid week as a freezer. The Jackery 300 lasted 2 days 9 hours as a refrigerator and went from 100% to 21%. I then plugged my Jackery into the wall AC charger and pass through charging worked with no issues after about 6 hours (could have been faster) the Jackery was back to 100% and ran the refrigerator off of only the Jackery. On freezer mode the Jackery lasted 1 day 16 hours, at which point I plugged the Jackery 300 into the AC wall charger. 9 hours later the Jackery was fully charged, (I fell asleep so I am really not sure how long the charging took.) I also did a solar pass through test with the freezer. The Jackery 300 battery was at 34% when I plugged it into the SolarSaga 60. Pass through charging worked great, and 8 hours later the Jackery was charged to 100%.
3. AC Devices, I have ran my Traeger Tailgator for 6 hours off the Jackery 300, I made Chicken Thighs and Steak. I have run a Crock Pot with the Jackery 300 for 3 hours, I then had to plug the Jackery in to the AC wall outlet. I ran a Crock Pot via the Jackery 300 fully charged plugged into the SolarSaga 60 for 7 hours then the Jackery ran out of Battery and could no longer run the Crock Pot on Solar only. I ran two large AC Window Fans for 9 hours on the Jackery 300 and still had 22% battery. I have had not issue running small AC appliances.
4. I have used all USB ports at the same time, and made sure both AC and DC passthrough charging worked with no issues. USB is fantastic.
At this point I would highly recommend the Jackery 300.
Attached are a few photos of my food warmer set up under my took cart. A photo of my job site so you have an idea of how much distance I have to go without power and how much of a life saver this is. And some voltage readings. The volt reading is well withing range for 120v electronic. I had an inverter recently that I my have me 120v. Your house sockets normally I my gets you 116 give or take 1 or 2 volts.
Back in April, I purchased the Jackery Explorer 1000 and the Goal Zero Yeti 500x later as a result of 2019's fires. Coincidentally, this year's fires on the entire US west coast is actually WORSE with new records broken! I cannot stress how important it is to be prepared for emergencies, and with a baby and young boy in our household, I wanted to ensure we have a crucial refrigerator running to store milk, medication, and whatever else we needed.
There has been an increase in people taking emergency preparation more seriously.
I had since invested in several car freezers (favorite is the Foho 34qt BCD-32) as part of my emergency toolset. When Jackery announced the Explorer 300 (E300) with a special launch price and some improvements over the Explorer 1000 (E1000), I jumped on it for one simple reason: my little boy loves camping, and I wanted him to have a mini-Explorer of his own (actually, I wanted another backup battery, but don't tell him that.) Literally, the E300 is a mini version of the E1000, and it looks awfully cute to have my son and I stand next to one another holding our own Explorers!
Right off the bat, the two models are very similar to one another, and so I will be re-using much of what I had already written for the Explorer 1000. The E300 is the direct successor to the company's Explorer 240 model.
CELL MANUFACTURERS
Today's devices use Lithium-ion (Li-ion) and Lithium Iron Phosphate (LiFePO4) cells so they can pack more power in a smaller package and weigh less. However, Li-ion (which the Jackery is made with) also is more volatile whose risk increases as more cells are packed together. The quality of the battery cells and the BMS (Battery Management System) are crucial for safety.
- Battery storage capacity is measured in Wh, and power output is in W (Watts)
- The higher the Watt-hour (Wh) capacity rating, the more dangerous the battery could become if not handled right
Battery cells made by LG and Sony are among the best in the hobbyist world as are Sanyo/Panasonic, Samsung, and BAK Battery. Jackery Explorer 1000's batteries are made by LG and BAK, but the E300's are by EVE Battery. I do not have much information about the new, publicly-traded manufacturer's safety record, however, but going by Jackery's track record, they likely would not have selected a poor company to provide fuel cells for their power stations.
During my years of research, I found that use of lower-quality batteries could pose a serious risk to life and property and should become a crucial part in deciding what to buy.
IN A NUTSHELL
Jackery Explorer 300 is a relatively light power station with a professional-looking exterior and flashy, orange color scheme, and is backed by a company that appears, from the stories I have read (and personally experienced), to take customer service seriously. The batteries are made by a manufacturer I do not know much about, but their weight is an indicator that they are likely good quality. The 300W of energy (and peak of 500W) provides enough power for a small amount of electronics and small appliances, such as a laptop, television, mini fridge, medical device (like CPAP), and car freezers, but will NOT work for most rice cookers, and definitely not for a vacuum, water boiler, or circular saw.
Like the bigger E1000, the hard, plastic material used to help shed weight (and cost) could be prone to cracking from hard falls or bumps, potentially exposing the Lithium-Ion batteries to puncturing. The fixed carry handle unfortunately cannot be folded, making it not ideal for packing things on top.
Functionally, this is an excellent, portable power station with a multitude of AC and DC outputs, is solar charging capable with MPPT built in, and has a battery management system (BMS) to help ensure safety. Equally important is its verified claim of a pure sine wave - not modified - AC Inverter to produce clean electricity for sensitive electronics. Like Goal Zero Yeti 500x, Jackery finally upgraded the E300 with a USB-C PD with a 60W output. The E1000 only produces 18W. This makes it very useful for charging supported laptops.
Jackery is one of Amazon's top sellers in the portable power station category with good customer service and reasonable prices, and as this is no longer my first experience with their products, I have no hesitation to recommend its latest product.
PROS
- At 293 Wh capacity, it is an improvement over its Explorer 240 model and falls in-between Goal Zero's Yeti 200x and 500x capacities
-- Capacity to power a 30" LCD monitor and Mini PC for 3-5 hours, a Toshiba 50" Fire TV for almost 2.5 hours
- Pure Sine Wave AC Inverter capable of continuous 300W power (and 500W peak) - More details later
- Very well-priced at $349 at launch
- Can power AC and DC (USB/12V Car adapter) at the same time (as long as they draw less than 300W combined)
-- Laptop, tablet, phones, lights, fans, CPAP medical device, projector, TV, mini refrigerator, speaker, camera, DSLR battery charger, and SOME rice cookers
- USB-C PD port outputs 60W
- Can be used while charging
- Faster charging with MPPT controller (Maximum Power Point Tracking)
- Informative LCD with LED backlight
-- Total power coming in (via solar panel or AC adapter)
-- Capacity left (as a percentage)
-- Total power (AC and DC combined) being used
--- Suaoki G500 displays the Wattage separately for DC and AC, which I prefer
-- Unfortunately, estimated hours to full charge or empty is NOT shown
- BMS provides built-in overload, overcharge (automatically stops charging when the device is full), and short-circuit protection
-- Multiple fans to keep the station's temperature safe
- VERY compact at 9.1" x 5.2" x 7.8", though the higher-capacity, slightly larger Goal Zero Yeti 500x is still my favorite for its size and capacity
- Portable at just 7.1 lbs
- Bottom is well-protected by bright-orange, non-slip feet
- Carry pouch included to hold AC charger and cables
- Cigarette socket cable included
- Unexpectedly good customer service
-- Technical support was excellent in answering all my questions
- 2 year warranty
- Clear, well-written manual, though details were scarce
-- Goal Zero's manual, on the other hand, is VERY detailed and helpful
- Company is based in California
CONS
The E300 shares almost all the same design problems I disliked about the E1000, but also adds some improvements.
- Batteries are not made by a globally well-known, Tier 1 manufacturer
-- My unit came with fuel cells by EVE Battery, a China-based, publicly-traded company
- No Anderson input port for solar charging
-- You charge with an (optional) Anderson-to-8mm converter cable instead
- Fixed carry handle cannot be stowed away
-- Makes it difficult to stow things on top at the back of a trunk
-- Upward-curved top (underneath the carry handle) does not allow small items to be temporarily stored on top
- Hard, plastic material makes the power station lighter, but could be prone to cracking from hard falls or bumps
-- Given that Lithium-Ion batteries become more volatile as capacity increases, one should handle the product with care
- Although the exterior looks very professional, once I saw the Goal Zero Yeti 500x, I fell in love with the Yeti's design
- Power buttons can be accidentally turned on/off through a single press (ie. while packing away your camping gear)
-- Can lead to accidentally turning on/off the output during transport
-- May unexpectedly find battery fully drained when you need it
-- Suaoki requires you to hold the DC or AC button for 2 seconds before it turns on/off that output, helping to minimize accidental presses
-- No automatic power off once no power is drawn/station has become idle
- AC power brick is flat and large
- No built-in flashlight or SOS signaling that the E1000 includes
- Display is not as informative as I'd like
-- Only shows battery charge level, input and output wattage, but no estimate of time remaining to full charge or to empty
- Multiple fans turn on during high peak and can be too noisy for some
- Battery cannot be replaced. This can lead to unnecessary landfill waste
- Cannot be daisy-chained to other Explorer 300/1000's to extend battery capacity
-- Some Goal Zero stations can be hooked up to other ones so power can be provided for an even longer time without needing to switch
- Not waterproof. Keep it away from water splashes, rain, and pool!
-- Lithium and fire or water can cause serious damage or injury!
- No master power off button to turn off ALL outputs at the same time
-- You have to manually switch off each type: DC, AC
- No carry bag for the power station itself is included
-- BUILT Willis 11" Insulated Lunch Box (ASIN: B08D6VMGG1) fits the E300 perfectly well (with usable pockets) when the Jackery is put on its side
INPUT PORTS
- 1x 8mm
-- Accepts up to 90W
-- Max 12-30V and 8A with no minimum wattage
--- WARNING: Do NOT use a power source/solar panel that exceeds 30V or 8A!
---- Be mindful that solar panels that are daisy chained in sequence/series may output more than 30V combined!
-- Can be used for solar charging
--- MPPT charge controller is built in
--- I recommend using a panel that's between 30W – 100W at 18V (with the right Amps to equal 100W)
---- If you attach a 120W solar panel (with 12V x 10A = 120W), it will charge at only 90W
--- I did not test solar charging as California is currently blanketed by smoke from the massive fires all over the west coast
--- Jackery SolarSaga 100W charged the Explorer 1000 at an excellent 69-88W of input. I expect it to be similar with the E300
OUTPUT PORTS
- 2x AC with 3 prongs (120V)
-- Inverter can handle a continuous 300W, peaking at 500W. More on that later
-- Pure Sine Wave Inverter
--- Ensures clean power to protect against damage to sensitive electronics
--- Generates less heat
--- Note: Some manufacturers claim to be Pure-Sine when they are actually Modified or Square Waves
- 1x Cigarette socket (12V, max 10A)
- 1x USB-C PD (5-20V, max 3A, max PD 60W)
-- PD (Power Delivery) allows a device to be charged with up to 60W through the USB-C interface
- 2x USB-A (5V, max 2.4A, max 12W)
-- One of them is a QuickCharge 3.0 for rapid charging of compatible devices
USAGE
- To turn ON or OFF the Car/USB (DC) or AC outputs, press the corresponding button
-- Note: This single-press (without hold) can lead to accidentally turning on or off the power station
- To reset an Error condition that's shown on the LCD (ie. AC port is Overloaded), turn OFF the respective AC or DC output, and back on
- To reset the Explorer, hold the DISPLAY button for 10 seconds
- Li-ion batteries have 500 charge cycles before capacity drops to about 80% from when they were new
-- Product could, in theory, be charged up to 2,000 cycles — about 1/4 of total capacity is lost every 500 cycle
- Unlike LiFePO4 batteries, Li-ion can operate only in temperatures between 32-104F (0-40C)
-- Jackery's Battery Management System (BMS) prevents:
--- Recharging in temps outside of 32 - 95F (0 - 35C)
--- Outputting power in temps outside of 14 - 104F (-10 - 40C)
- Battery, like all Li-ion, slowly drains over time even when station is powered off
-- Could take 1-1.5 years to go from full to empty
CONTINUOUS VS PEAK OUTPUT
The Explorer's AC Inverter provides a continuous output of 300W with a peak/surge of 500W
- AC Inverter: Component responsible for converting battery (DC) power into AC for use by electronics
- Continuous Output: As long as a device (or combination of multiple ones) does not exceed 300W, it can be used
-- Example: A TV that uses 100W can be used because it is less than 300W. You can add more devices as long as they do not exceed 300W combined
-- Example: A miter saw I have uses 1,800W, and because it exceeds 300W, it cannot be used
- Peak/Surge: Almost every device temporarily draws more power when it is turned on. The highest amount it pulls during that time is the Peak/Surge. This Explorer can accept up to 500W
-- Example: A TV that uses 200W (continuous) may temporarily suck up 400W (peak) when powered on. Because 400W is less than 500W (peak), this battery will allow the TV to turn on at that level for a few seconds (any longer, and it might cut power as a safety precaution). After a few seconds, the TV then only uses 200W (less than the continuous 300W limit) until the battery is drained
-- Example: An unusual device that uses 250W (continuous) and surges to 1,500W when powered on would instantly be shut off by the Jackery. Why? Even though the device uses just 250W while already on, it jumps to 1,500W when powered on, exceeding the 500W surge limit of the Jackery
CALCULATIONS
The below calculations are rough estimates as conditions, quality, and product age can vary.
CHARGING TIMES
- Wall charger: 4-5 hours
-- AC adapter was observed to provide 76W when charging level was at 37%
-- AC adapter will gradually charge slower as battery reaches full capacity (for safety reasons)
- 100W solar panel: depending on weather conditions, it should take about 5-6 hours. I could not fully test this because the smoke from the California fires is blocking the sun
-- WARNING: do NOT connect panels sequentially or you may output too much voltage and fry the power station! Connect them in PARALLEL with a Y-Branch cable
- Goal Zero Yeti 500x can combine its 8mm and USB-C PD ports for a total input of 180W. Neither the E300 nor E1000 can combine both inputs
HOW MANY WATTS DOES A DEVICE US?
- Calc: Watts used by device = Voltage x Amperage
- If a vacuum is 120V and 9.5A, it uses 1,140W
If a device draws more than 300W for an extended period of time, the power station will shut off as a safety precaution. This can also shorten the battery's lifetime
HOW LONG CAN A DEVICE BE USED FOR?
- Calc: Hours available for device = Battery capacity (Wh) x 0.85 / Watts used by device
-- Generally, about 10-15% of power is lost during power conversion
- If a device uses 60W, it could last up to 4.1 hours (293 Wh x 0.85 / 60W)
- Amazon TV I have uses about 100W
-- If battery is full at 293 Wh, TV could run about 2.6 hours (293 x 0.9 / 100)
HOW LONG DOES IT TAKE TO CHARGE A DEVICE?
- Calc: Hours to charge device = Device's battery capacity (Wh) / Input Wattage
- If a laptop accepts 60W of input and its battery capacity is 200 Wh, it could take 3.3 hrs to charge (200 Wh / 60W)
HOW LONG DOES IT TAKE TO CHARGE THE EXPLORER 300 WITH SOLAR?
- Calc: Hours to charge battery = Battery capacity (Wh) / (Panel Wattage x [0.5 or 0.75])
-- In a perfect lab environment, solar panels charge at the indicated wattage (ie. 150W)
-- Expect to only receive 50-75% on a good, sunny day (ie. 75W - 113W), depending on environmental conditions, panel's age, and component quality
-- Tip: Even if it is overcast, the panels will STILL collect solar energy. Keep charging!
- If a solar panel is rated for 100W, it could take as fast as 3.9 hours [293 Wh / (100W x 0.75)] to charge
HOW DOES ITS CAPACITY COMPARE TO POWER BANKS?
- Calc: Powerbank-equivalent capacity (mAh) = Battery capacity (Wh) / Voltage x 1000
-- 1 Ah = 1000 mAh
- Explorer's 293Wh at 3.6V is roughly a 81,389 mAh powerbank (293 Wh / 3.6V x 1000) or a 27,129 mAh at 10.8V
TIPS
- Always test your devices with the power station before you depend on it on the go
- Lithium-ion batteries are volatile
-- To minimize fire damage to your belongings or loved ones, store the power station in the garage and not inside the house. Best storage is a dry, cool place, however
-- You cannot bring a battery of this capacity on a plane
- With the right BMS, quality batteries, and other factors, the power station can be stored in the car while camping during a hot, California summer
-- Keep the battery out of direct sunlight. I usually store it on the floor of the car and crack open the windows a tiny bit
-- Do not USE in the car if temperatures fall below or exceed the battery's rated, operating temperature (32-104F or 0-40C)
Keep your car cigarette lighter with the power station -- you could plug it into its 12V DC socket for starting a camp fire
- If using a car charger, make SURE you only charge this station while the car is RUNNING. Otherwise, you'll deplete your car's battery and leave you stranded
- If charging with a solar panel, be sure to keep the station out of direct sunlight as it could overheat
-- A solar panel is NOT required to use the battery
-- Explorer 300 uses the MPPT solar charge controller
--- Smarter, more efficient/expensive than PWM
--- Suitable for larger systems
- Can be used and charged at the same time. Manufacturers’ recommendations for their own products:
-- Yes, that’s fine: Goal Zero, Jackery, Rockpals, nrgGo
-- No/Not advisable: Suaoki
- NEVER charge the power station itself in below freezing temperatures, or you will damage the Li-ion battery AND potentially limit its overall capacity
-- You CAN use it to power OTHER devices because the generated heat will warm its battery enough to be within operating temps
-- At below freezing temps, keep it in an insulated cooler and connected to a power source (ie. solar panels). The heat generated by the battery will keep it running as best as it can
- Turn off any output ports (AC/DC) that are not being used in order to conserve power
- Do not use any power station in a tightly enclosed area as it can overheat
- To prolong the battery lifetime while in storage, keep the battery fully charged every 3-6 months
-- Or, according to customer support, keep it plugged in when not in use and discharge it to 50% every 3-4 months
-- NOT using the battery for a very long time can actually hurt its lifetime
-- There is no "memory effect" in this station's battery. It is better to NOT let it completely drain
FINAL THOUGHTS
The Explorer 300 is another winner for Jackery in that it has made several improvements over its older, bigger brother, the Explorer 1000. I was disappointed to find out that its batteries are made by EVE Battery, a Chinese, publicly-traded company I have little knowledge of. The Explorer 1000, on the other hand, used either LG or China-based BAK Battery, both of which are excellent manufacturers. The company has shown time and time again that it takes customer service VERY seriously, and to me, that is a major plus. The 300W of energy (and peak of 500W) provides enough power for a small amount of electronics and small appliances, and is the perfect size for my little boy, the fellow explorer and camper.
The hard, plastic material commonly used by power stations to help shed weight and cost (just like the E1000) could be prone to cracking from hard falls or bumps, and as such, this product should be handled with care - a puncture of the Lithium-Ion batteries could cause severe harm. The fixed carry handle unfortunately cannot be folded, making it more difficult to pack things on top.
Jackery is one of Amazon's top sellers in the portable power station category with good customer service and reasonable prices, and if the new EVE Battery manufacturer proves to be as reliable as other Tier 1 makers, I will have no hesitation to recommend its latest product.
UPDATES:
9-17-2020
1). From 99%, it took only 10 to 15 minutes more to get to 100% when plugged into the 12V DC outlet of my vehicle & the Explorer 1000. More efficient charging than through my gas generator’s AC outlet. Pleasant surprise!
The GREATS
1). Faster 12V DC Charging
Immediately after picking it up from the post office, I took it out of the box & plugged it into my vehicle’s 12V DC outlet & charged it during my 4 to 5 hour trip back up the mountains where I’ve been staying since the pandemic. It was at 37% charge capacity when it started charging. After approximately 3 hours and an input of steady 80 watt, it was at 99% charge already(to my pleasant surprise). This is a huge improvement to the Explorer 240 because it would take about 5 hours to get recharged the same capacity. In addition, this is very important to me since I don’t have my solar panel yet and I do a lot of driving exploring a huge forest.
2). Improved 12V DC Cable
This was my initial BIG complaint when I got my first Jackery, the Explorer 1000. I didn’t get one in my box. Even worse, when I borrowed my friend’s 12V DC cable charger (cause it took a while to get one from Jackery), the PLASTIC TIP that inserts into my vehicle’s 12V DC outlet melted (see photo) after charging the Explorer 1000 through the same 4 to 5 hour trip back up the mountains. I did not experience this problem with the Explorer 300. Although the cable seem the same, the plastic tip DID NOT MELT this time. Imagine my relief.
3). 293WH Seemed More Efficient
As soon as we got back to our campsite, I immediately unplugged my 70qt car fridge/freezer from the Explorer 1000 & plugged it into the Explorer 300’s 12V DC outlet. I left the Explorer 300 with 99% charge while the fridge was set at 20°F on eco mode (as always). When I checked it in the morning, it was at 50% charge after 9 hours overnight. Usually, the Explorer 240 would be down to 40% or 30% charge and the Explorer 1000 would be down to 60% charge from 100% at the same settings. However, I also have to mention that the first night that I got and used the Explorer 300 was also the first night that the temperature was very cold at 24°F. It most likely helped run the fridge’s compressor less frequent which meant less power demand. I’d know for sure next summer and I’ll give an update here.
4). Recharges My USB Devices Pretty Fast
Although I don’t have a definitive and scientific measurement of how long it takes to recharge my devices: cell phone, tablets and Jackery power banks, I know for sure that the recharge time is appreciatively faster than when I’m using the Explorer 240 to do the same task. Ergo more productivity.
5). Consistent Charging With a Gas Operated Generator
The input was a steady 77 watt from a 120 volt AC outlet of my generator which I prefer to the fluctuating input of 162w to 167w into the Explorer 1000. It’s really no big deal, but I just like it better steady.
6). Plenty of Safety Features
a). Like the other Explorers, the Explorer 300 also shuts down after 12 hours if a plugged device(s) drawing under 10 watts of power. This happened to me when I plugged my 12V electric fan into the 12V DC outlet drawing only 7 watts of energy. According to Jackery, this is to prevent damage to the lithium ion battery used in the unit. In turn, this feature also helps the unit last longer.
b). Like the Explorer 240, the Explorer 300 does not power or run my 12v DC tire inflator/compressor at high state of charge. During my test, the Explorer 300 was at 86% charge capacity. Even after three times of attempt to power my tire inflator, I had no luck. However, I was able to run the inflator when the Explorer 300 was down to 45% charge. Again, according to Jackery, this is a safety feature.
c). Unlike the Explorer 240 that doesn’t have one, the Explorer 300’s 12v outlet’s rubber cover certainly prevents foreign objects from being inserted. Thus, avoiding electrical accidents or fire.
d). The unit’s design is very safe for children & pets. There are no moving parts or handle that folds down to trap any body part. Moreover, there’s really no paint to chip and swallow. The paint seems to be baked in. There’s also no sharp corners!
The SHORTS
1). Takes a Long Time to Charge to 100%
Although it’s quick to get to 99%, it took almost an hour to get the last 1% of charge via the 120v AC outlet of my gas operated generator because the input goes down (see photos) as the charge goes up. Bummer!
2). Won’t Run My 12V Tire Inflator at High Charge Capacity
It just doesn’t make sense to an electrically challenged person like me why I can’t power my inflator while the charge capacity of the Explorer 300 is above 50%. This means that if I had a flat tire or I need to inflate my air mattress & rubber boat (at the lake, away from my vehicle’s 12V DC outlet) I have to deplete the charge capacity to 50% or less first from a full charge or never fully charge it.
In the end, the Explorer 300 embodies the same high quality that is a signature of Jackery. Kudos to the Jackery team for producing another top shelf unit that is of great value. I highly recommend this product to everyone. This is especially helpful during this present time of uncertainty.
Hope this helps.
Most power outages are not very long lasting. So, I didn’t want to fool with a generator. I imagined how I’d have to check a generator every month. The maintenance. Wheeling the heavy unit around. Getting & storing fuel. Having enough fuel. Making sure the fuel lasts. Struggling to pull start it. The fumes from running it. The loud noise when it actually does run. Not to mention, an easy thousand plus bucks to buy one. All that seems overwhelming for more than 99% of our needs.
If the power goes out, no stress, we just grab the Jackery. It’s practically silent and light enough to move around by just about anyone. Is the Nintendo Switch low? No problem. Your Chromebook? Want to run the PS4 or Xbox One? No worries. Your phone, watch, tablet - again - zero stress - just plug it in. Wa-la, problems fixed.
It can run fans and a whole host of other devices too - not just your typical tech electronics. During tests, we ran our cable modem / router for many hours to provide WiFi. It accepts regular wall socket type plugs too. Also during our tests, it ran a 55” inch TV along with a PS4 Pro for over 1.5 hours. We even used a disc based game to use even more power. With a smaller screen it’s closer to 2.5 hours. Downloaded games use less power too. The Nintendo Switch uses even less. All that exceeded my expectations. SUPER EASY.
Now let’s talk camping, car trips and other family outings. Again, the Jackery 300 is clutch. There’s no need to be concerned about limited outlets in the car to charge or none available at a park or campsite. If I’m going camping - this will always come with us. How nice to run a fan inside the tent during the summer nights! This will instantly get you “glamping”. Tons of options here.
The Jackery 300 is also fairly compact and lightweight and weighs in right around 7 1/4 pounds. It’s significantly smaller than the size of a small Igloo Playmate Cooler that I have used as a lunchbox for years.
I appreciate that’s it’s powerful but doesn’t take up much space. It’s interface is solid and super easy to understand. All around it’s very intuitive and you can tell everything is very well thought out. It also has you covered with a wide variety of plugs from AC outlet sockets to a car power port to USB-A and the newer USB-C. It even comes with a quality zipper pouch to store your charging cables.
Another thing about Jackery is it’s a widely recognized brand with a proven quality track record. Many no name brands are out there that don’t include the device and circuit protections Jackery units do. The last thing I want to do is buy another power station after frying our expensive electronics. I am a believer that when you buy cheap, you often buy twice. This is the top brand in this category of products. I definitely don’t have time to mess with low quality el cheapo brand units.
Without boring you with detailed specs, the Jackery 300 produces a very clean stream of power - which is exactly what you want. In layman’s terms, it’s a smooth stream without all the peaks, valleys and surges that can harm your devices.
One thing we tend to forget until something happens is what we have on hand for emergencies. This is definitely on my list. If we need to evacuate for any number of reasons (storms, fires, Godzilla - the weirdness of 2020) the Jackery 300 is a must take item.
Those in the Prepper, Bug Out and Emergency Preparedness minded communities should be all about this. It can even be fully recharged in just a few hours with the optional Solar Saga solar panel. It can of course be recharged too by your standard home outlet or even your car - and it doesn’t take forever to do it. It also doesn’t alert everyone far and wide that you have power. That might be handy while in a non permissive environment or even a noise restricted campsite.
In today’s age and with everything going on, this should really be a staple device in our homes. I feel better just knowing it’s on hand. It’s one less thing to worry about.
Lastly, I plan on buying another for my senior citizen mother too. That alone should say a lot!
TLDR: Zero regrets with this purchase. It’s an absolute no-brainer.
The Jackery Explorer 300. What is it? Some know it as a power station, some know it as a solar generator, and some have no idea nor clue as to what the unit is or how to even utilize it. This review should shed some light on that and get you folks up to speed and in the know in regards to what there is to know about this new Jackery Explorer 300 power station / solar generator.
Portable power generation and storage. The new Jackery Explorer 300 released on September 1st, 2020 of this year is Jackery’s latest and greatest product to hit the off-grid power sector. Their products are used by campers, nomads, tailgaters, and preppers alike. The Jackery power stations are portable power solutions that can be powered or recharged via solar power, automotive 12v DC, AC 110v home / office outlet, or shore power connection from an available external power source at a camp site / RV Park.
Jackery Explorer 300 features the latest and greatest in tech with it’s modern USB-C PD output port, USB-A QC 3.0 output port, addition of a second 110v AC receptacle, and an all new MPPT charge controller built-in to the unit to allow for rapid and sustained high-speed charging, doubling that of the previous Jackery Explorer 160 and Explorer 240 models on the market. Weighing in at only 7lbs, this new Explorer 300 model is the pinnacle of lightweight and portable power! Paired with a Jackery Solar Saga 60 solar panel and you would be sustainable with unlimited green power whilst backpacking / hiking out in the wilderness for days on end.
Power Stations / Solar Generators like the Jackery line of products, specifically the Explorer 300 are perfect for van life nomads like myself whom are not into complicated DIY custom built setups and just want the convenience and robust nature of a simple all in one power station with built in I/O ports that the Jackery Explorer 300 offers. This solution is for the “grab and go” lifestyle and requires no thought or setup whatsoever as the Jackery Explorer 300 is dummy-proof in regards to deployment and using out in the field or in your vehicle.
The industry leading two years manufacturing warranty gives you a peace of mind knowing that Jackery stands behind their products and has you covered in the event you run into any issues. Jackery is based out of California, USA and has an award winning customer support staff on their team to answer any questions or provide you with any product support you may need. All of my interactions with Jackery customer service has been nothing but positive since day one as I am a longtime customer of theirs since 2019, purchasing and owning of their Explorer 500 power station and as well as their Solar Saga 60 solar panel. In fact, I own two of their Explorer 500 power stations, but that’s neither here nor there.
Devices I plan to power or recharge with this specific unit include, but are not limited to; iPhone XR, PlayStation Vita Slim, Nintendo Switch Hybrid v1.0, Razer Blade Stealth 13 | Late 2019 Ultrabook, Insignia 19” 720p TV, Opolar 9” rechargeable fan, Aukey touch lamp, Goal Zero Crush Lantern, HotLogic Mini 110v oven, Alpicool C15 12v compressor refrigerator.
Included in the package:
(1) Jackery Explorer 300 Power Station
(1) Soft zippered pouch to store power cables
(1) 110v AC wall / shore power adaptor
(1) 12v DC automotive power cable
(1) 2 year warranty miniature Jackery card
(1) User Manual / Quick-Start Guide
(1) Jackery product satisfaction tree flyer
Pros:
-Lightweight portable power solution at only 7lbs!
-USB-C PD output port at 60 Watts!
-USB-A QC 3.0 output port.
-DC 12v output is regulated at 13.3v
-Upgraded beefy 12v DC to 8mm power cable.
-300 Watt / 500 Watt Peak Pure Sine Wave inverter with two receptacles instead of one.
-MPPT charge controller built-in vs the PWM charge controller on Jackery’s older units as well as much cheaper power stations on the market. MPPT allows for significantly faster recharge times.
-Pass-Thru charging! The Jackery Explorer 300 can be recharged and discharged at the same time. Collecting solar power (solar panel sold separately) and using it to your hearts content!
-Robust backlit LCD that contains all pertinent data user may need to know in regards to device power usages, input, output, and operation. Included battery percentage, battery segment visual graph, as well as input and output wattages.
-High / Low temperature alarm indicators.
-Auto-Power off if left running for 12 hours without a significant load exceeding 10 Watts applied to the power station. This will save battery life and cycles.
-Low Battery Warning. LCD screen will flash ten times at 20% and 10% power remaining to signal to user that the power station needs to be recharged.
-Warranty! Industry leading 2 years manufacturing warranty with ability to extend 12 additional months via registering your product purchase on Jackery’s website!
-Lifetime Technical Support! Have any questions? Contact Jackery Customer Service Department. They are headquartered out of the United States in the State of California and they will get you taken care of.
Cons:
-No wide area light / lantern included on the back of the unit like some other power stations on the market in this class include.
-USB-C PD port is output only. Does not accept input for charging.
-No USB-C to USB-C cable included with the package
-DC 12v Automotive Port is only rated at 10A, and is unable to power a Slime 12v automotive tire air compressor.
Final thoughts:
The Jackery Explorer 300 is a robust piece of kit to own for your camper van / RV, vehicle of choice for tailgating, carry in your backpack for hiking, or store on a shelf at home for emergency preparedness in a grid down scenario. Despite the few shortcomings of the unit that could be addressed by Jackery in future revisions of their power stations, the advantages this lightweight and compact power station offers make it completely a worthwhile investment and I am quite happy with my purchase! I plan to use the Explorer 300 in my 2017 Ram ProMaster City camper van on a daily basis in conjunction with my Jackery Explorer 500 and my Jackery Solar Saga 60 solar panel. I hope to purchase a Jackery Solar Saga 100 solar panel one of these days to perform additional testing with the Explorer 300. I rate the Jackery Explorer 300 a 4.5 / 5 Stars (9/10) rating here on Amazon and I highly recommend purchase of this product should you find yourself wanting or needing off-grid power for whatever reasons you may have. You will not be disappointed. Jackery will guarantee it.
I have tested the E300 with several LED & CFL lights that can be used in table lamps and the best one is a 14W Grt Val 1500 Lum LED 'DayLight' bulb, It draws 20 Watts and the E300 will power it for 12-14 Hours from 100% to 10% battery charge levels. The fan will run part time and is very quite. I place the LED light bulb in a small table lamp and it can be moved as needed. You probably already have LED's in your table lights so just use one of them. I also tested a Philips 11 Watt 1000 Lumens LED light for 6 Hours and the E300 charge level decreased from 90% to 60%. I also tested a 5 Watt Onite 400 Lumens USB LED light for 9 Hours and the charge only changed from 90% to 75%. Any of these three choices are a big improvement over my LED lanterns that start out bright but quickly dim unless you run them on low power. As a result of purchasing the E300 I have retired several of my D-Cell LED lanterns that were being used for the power outages and replaced them with table lamps, rechargeable LED Lights and flashlights with rechargeable AA & AAA batteries.
I have a UPS to protect my desktop computer that gives me 20 minutes of runtime in a blackout but if I plug the UPS with the connected computer into my E300 I can extend the operating time at least two more hours. My internet also provides my telephone service and the U-Verse modem needs power or I lose telephone service. The Power Lift Chair can operate from the E300. The "Merlin@Home" Transmitter needs power to send pacemaker data and worked just fine when tested.
I like having more than one power station because I won't need extension cords for each device that I want to power and that also lets me place then in different parts of the house. The E300 has some new features that were not on the E240. The AC Inverter is now 300 Watts (pure sine wave), the 13.3 Volt regulated car port output has a nice cover and the USB output has 60W PD USB-C, QC3.0 USB-A, USB type A port (2.4A). The MPPT charger provides faster charge rates from solar (5.5H), AC (4.5H) and from a car port (5H).
An important feature of the Jackery Explorer 300 is the pass through charging can be used to supply power continuously to a critical load by charging the E300 from the DC Carport on another Jackery Explorer. If the load on the E300 is 75 Watts or less the E300 will stay almost fully charged. The Jackery (E1000, E500, E440, HLS290, E240 or E160) can supply power until their battery is exhausted. This method will allow you to keep the E300 in a critical place without the need to move it outside to recharge by a Solar Panel or Generator. The other Jackery Explorer unit can then be moved and recharged as needed. The DC charging cable you will need is supplied with the Jackery Explorer 300.
The E300 is much more useful than just for power outages and I am discovering more uses every day. The E300 provided power when the wife needed a heating pad while setting in a wheel chair a few days ago. I have a solid state Oscilloscope that the Jackery E300 can power for several hours and that makes one of my best pieces of test equipment truly portable. The E160 and the E300 are used to provide power for my Ham Radio equipment when operating at temporary locations.
Two things that would help with my Ham Radio Equipment is the addition of Anderson PowerPole connectors on the DC input and DC output. This would help when charging the E300 and powering my radio equipment from the E300. The ability to turn off the "Auto-power off feature when the draw is under 10 watts" would really be handy. This feature is great for saving the battery but not so good when powering tranceivers that are monitoring an emergency radio frequency. You just might miss your call.
For maximum battery power, charge Lithium-ion Batteries every 6 months to compensate for the self discharge and for longer life, charge before going below the 20% charge level.
The Jackery Explorer 300 is well worth the price and is expected to provide excellent service for many years.
Here are some photos of just a few of the items that the E300 can power.
Jackery Explorer 300 Waveform; Heating Pad on Wheelchair; AA & AAA Battery Chargers; Rechargeable lights; Ham Radio Equipment; Jackery Explorer 300 with accessories; AC, DC & USB fans; Solar Charging in Morning Sun; Power lift Chair; Oscilloscope; AC, DC & USB Powered Lights
There are three things I would like changed in the Jackery 300, but they are very minor. I prefer a square or rectangular shape for efficient storage in my small Class B RV. I would also like earth tone colors for better stealth (I don’t need people knowing what I own and where to find it while I am camping). The Jackerys all have an orange coloring on them making them more visible than I like. The more important thing I would want to make the 300 a better unit is to have a typical charging port on it instead of the 8mm connection, such as an Anderson connection like the Jackery Explorer 1000 comes standard with.
Pros:
• Superior build quality*
• MPPT controller
• Pure Sine Wave 300 watt inverter (500 watt surge)
• Quicker re- charge than past models (2x per my test)
• Regulated 12 Volt outlet (at 13.5 volts)
• Excellent Display showing % good, input & output wattage
• Only 7 pounds
Neutrals:
• 500 charge cycles to 80% capacity (I prefer LiFePO4 chemistry)
Cons (minor):
• Shape (I prefer square or rectangular)
• Bright Orange Color (I prefer neutral or stealth colors)
• I wish for a more common charging port such as an Anderson connector
Features:
• 293Wh Lithium Battery
• Pure Sign Wave 300 watt inverter (500 W surge)
• MPPT Solar Controller
• Regulated 12 volt output 10A w/cover (cigarette plug)
• Two AC outlets
• Quick charge capability
• Display with watts in/out & battery percent good
• USB-C 60W
• USB-A 3.0 Quick Charge
• USB-A 5v, 2.4A
• 8mm Input connector
• Individual on/off buttons
• Plastic Case
• Rubberized feet
Included in the box:
• Warranty card
• Manual
• A small register card
• Case for cables
• AC Adaptor in 2 parts
• Car Charger Cable for cigarette plug
• Jackery Explorer 300 Power Station
*There is an interesting video on YouTube where Will Prowse cut opened a Jackery and checked its interior built quality. This man is very knowledgeable with batteries and solar systems, check out his many video reviews. He found the Jackery to be extremely well designed with large gauge wires, quality soldered circuit boards, what appeared to be a superior BMS etc. He has looked at many other power stations and none were constructed quite as well. This video alone convinced me to purchase my first Jackery.