EnginStar Solar Generator, 300W Portable Power Station, 296Wh Lithium Battery Backup w/Two 110V Pure Sine Wave AC Outlet for Camping Road Trip RV, 80000mAh Sufficient Power Supply for Blackout
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Availability:
In Stock.
Arrives
Saturday, Aug 1
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Color: Green
Features
- Portable & High Capability Portable Power Station 300w - with 9 x 5.5 x 7.5 inch body size, compact and easy carry on the go, 300 watt-hours capability of power, great companion for outdoor off-grid activities, 80000Amh sufficient to power for extending explore nature, camping, travel, hunting, and more
- Cleaner & Reliable Power Supply - 300 watt solar generator with smart battery management system manages, Two pure sine wave AC output provide stable power; cleaner power supply with built in lithium battery, easy to recharge; Equipped with 8 outputs: 2x 110V AC ports, 3x USB output (including 1x USB C 18W), 1x 12V Car port, 1x 12V DC, 1 x 24V DC 5.5x2.1mm barrel ports, multiple devices charge at the same time with both AC and DC outlets
- EnginStar 300w power station with multiple recharge options: EnginStar solar power generator can Quickly recharge with AC wall adapter stay at home(fully charge in 7 hours), connect with solar panel 12-25V solar panel (solar panel sold separately in EnginStar store) in sunny day outside, or car charger on the go of road trip
- ADVANCED PROTECTION SYSTEM: 300w battery pack equipped with overloading, over discharging, overcharging, overheating, and short circuits, reliable performance, extensively tested and certified by battery standards set by UL, 1000 cycles rechargeable power bank, longer life span
- Package Contain and Battery Maintain: 1*EnginStar Rechargeable Electrical Power Station, 1*User Manual, 1*Home Charger, 1*car charger cable, 12 months limited service time(from the date of purchase); Recommend fully charge it every 2-3 months to keep the power station in good work condition, recharge in time before drain all the power
- Tips for protecting battery station: 1. Fully charge the electricity power station before using 2. If it is not used for a long time, the stored battery should be recharged every 3-6 months, and it is appropriate to keep it at 40%-70%. Recharging the battery before it is completely exhausted 3. The battery should be stored in a dry environment at 40F~100F (4C~35C) or in moisture-proof packaging. Keep away from heat sources, and dont place it in direct sunlight
- Note: 1. This 300w portable generator only support lower than 300Watt Hour device, it may not support large capacity product(Electric Grill/ Induction cooker/ Microwave/ Refrigerator/ Heater) and more 2. It is normal when you turn on the ac output button, the red triangle shows up for checking AC output and will disappear in 3-5 second
Brand: EnginStar
Wattage: 296 Watt-hours
Fuel Type: Electric
Power Source: Battery-Powered/ Solar Powered
Recommended Uses For Product: Camping
Item Weight: 6.5 Pounds
Voltage: 110 Volts (AC)
Output Wattage: 300 Watts
Special Feature: Overload Protection, Short Circuit Protection, over discharging protect, overcharging protect, overheating protect See more
Included Components: solar_panel,charging Cord
Wattage: 296 Watt-hours
Fuel Type: Electric
Power Source: Battery-Powered/ Solar Powered
Recommended Uses For Product: Camping
Voltage: 110 Volts (AC)
Output Wattage: 300 Watts
Additional Features: Overload Protection, Short Circuit Protection, over discharging protect, overcharging protect, overheating protect
Engine Type: 4 Stroke
Total Power Outlets: 2
Current Rating: 8 Amps
Engine Power Maximum: 300 Watts
Starting Wattage: 300 Watts
Running Wattage: 300 Watts
Smart Home Compatibility: Not Smart Home Compatible
Frequency: 60 Hz
Color: Green
Material Type: Plastic, Aluminum
Brand Name: EnginStar
Included Components: solar_panel,charging Cord
Model Name: R300
Model Number: R300
UPC: 645716648568
Manufacturer: Hengke Energy(GuangDong) Co., Ltd
Manufacturer Part Number: R300G
Item Type Name: Outdoor Generator
Item Weight: 6.5 Pounds
Item Dimensions L x W x H: 9"L x 5.5"W x 7.5"H
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Aug 1
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: Black
When I ordered this I was only 2 days away from going into the field for a military training. I had forgotten to get a portable battery to keep my CPAP running while I was out there. It shipped very quick and I had it just in time. It’s very easy to use and works great from multiple nights without power. The battery lasted 3 days using my CPAP every night and charging my phone. It’s small enough to carry in a backpack which makes it very portable. I even used the flashlight setting on the back to light up my tent when I needed to see.
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Reviewed in the United States on May 17, 2026 by Korey
Color: Black
I purchased this Power Station to power my CPAP while camping. I tested other out with my CPAP. I have a Resmed Airsense 11 CPAP with Humidity and heated hose. I plugged in my CPAP using the 110v outlet on the power pack. Turned on the power pack and then the CPAP. I disabled the Humidity and heated hose on the CPAP and the display on the power pack read 37v. When I put the face mask on and the volt display didn't give any volts reading. The CPAP was still working so I went to sleep with 5 power bars on the display. Woke up 8 hours later, still showing 5 power bars with CPAP still working! Day 2, started with 5 power bars and did the same test again, same results again, only the power bank had 3 power bars showing! Day 3, same test, started with 3 power bars BUT 4 hours into my sleep the power bank shut down. The display showed 0 power bars. I then fully charged the power pack and performed the same test as above with the same results!!!! In conclusion, I was able to power my CPAP for approximately 20 hours on 1 charge!!!! O have to assume that others who left reviews stating that they only got 5 hours of run time from the power pack while using their CPAP, were probably using the Humidity or tube heater options on their CPAP which would explain the lower run time. Charge time was about 6 hours when plugged into my house 110v outlet. Haven't used the cigarette lighter power cord for 12v charging. This power pack looks like it will fulfill my needs while camping. I can recharge this power pack using the 12v cord while traveling from location to location. I will update when possible.
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Reviewed in the United States on March 30, 2026 by bill5498
Color: Black
This is a great tool. It works and it is very versatile. I have a large portable fridge/freezer. 80qts (75 liters). It is plugged into my truck’s 120v inverter while I am driving. However when I stop and turn off the engine I lose the power to the fridge/freezer. So I plug it into the EnginStar power station and it keeps the fridge/freezer working. I tested it outside in Florida 90 deg heat and the EnginStar kept it working for 9 hours!!! Buying another to keep around the house!!
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Reviewed in the United States on June 8, 2026 by Tam Jacobite
Color: Yellow
I’ve been using the R300 for a little while now, and it has quickly become an essential. Whether I’m managing my business operations or catching up my virtual classes, having a dependable power backup is non-negotiable. If you live in an area with frequent power fluctuations or if you want to work / study from anywhere, this is perfect for keeping your essentials, basic electronics running without a hitch. It’s quiet, efficient, and holds its charge well even when stored for days.
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Reviewed in the United States on May 8, 2026 Reviewed in the United States on May 8, 2026 by felix sanchez
Color: Yellow
Works well but can be slow to charge a phone. stays charged for a very long time. I think it's a good PowerStation for the price. have used it to charge a phone and to blow up a mattress and it still had a ton of power left
Reviewed in the United States on May 20, 2026 by Katie Threatt
This EnginStar 300W power station has become my reliable companion for camping trips and emergency backup power. At 6.5 pounds and compact dimensions, it strikes an excellent balance between portability and capability that makes it genuinely useful for outdoor adventures. The pure sine wave AC outlets provide clean power that safely runs sensitive electronics like laptops and cameras without the compatibility issues found in modified sine wave units. I've successfully powered my laptop for several hours, charged multiple devices simultaneously, and run a small LED light setup without any performance issues or device problems. Battery capacity at 296 watt-hours proves adequate for weekend camping scenarios. Realistic runtime includes charging phones 15-20 times, running a laptop for 4-6 hours, or powering LED lights for multiple evenings. The LCD display clearly shows remaining capacity and power draw, helping with energy management in the field. The multiple charging options add real versatility. Wall charging takes about 7 hours as advertised, car charging works well during travel, and solar compatibility (panel sold separately) provides off-grid recharging capability. Having all three options covered means you're rarely stranded without power options. Build quality feels solid for the price range. The housing withstands typical camping abuse, and the various ports and switches operate smoothly. The integrated LED light serves as a useful emergency illumination source, though it's not particularly bright. The protection systems appear to function properly - the unit has safely handled various load scenarios without overheating or shutdowns. Battery management seems effective, maintaining consistent performance through numerous charge cycles. Limitations include the 300W power ceiling, which rules out higher-draw appliances like microwaves or space heaters. The cooling fan can be audible during heavy loads, and charging time is relatively long compared to some competitors. The maintenance requirements are clearly explained and reasonable - periodic charging prevents deep discharge damage, and proper storage guidelines help preserve battery longevity. Bottom Line: Excellent portable power solution for camping, emergency backup, and mobile electronics needs. The combination of capacity, portability, and multiple charging options makes it valuable for outdoor enthusiasts and emergency preparedness. Best for: Weekend camping, RV trips, emergency backup power, outdoor photography, remote work setups
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Reviewed in the United States on July 13, 2025 by Daniel P.
Color: Black
This is a great product that does what it says it does. I charged quickly and stayed charged. We took it camping to power phone chargers and a cpap machine. I ran all night without any issues and had plenty of charge left in the mornig. I would definitely buy it again,
Reviewed in the United States on May 28, 2026 by Linda Daley
I bought this to power my CPAP device during camping/hunting trips, and the first time I used it everything went great. I went to bed somewhere between 10-11pm and woke up around 7-8 am wearing my CPAP all night and the power unit only went down to something like 50-60%. So I figured, "Sweet, this thing will last at least 2 nights if needed". Anywho, fast forward to this last weekend; I had the unit fully charged and I was taking my wife and boys on an overnighter campout where this would be needed again. Starting the night (Went to bed around 9-10 pm), it was working just fine. But I woke up around 2 am with a super dry mouth and struggling to breath, so I checked my CPAP and found that it was off. Went to check the power bank and found it completely dead; it hadn't even lasted ONE full night this time. There were 2 differences between this and last time that may have contributed, but I'd be shocked if these 2 factors really tanked the battery that badly this time. The 2 things I did differently this time is I had 2 phones also plugged into the unit overnight (neither of which fully charged before the unit died) on this campout whereas last time I had 1 phone plugged in and the other difference is that at night the temperature was significantly colder than the last campout. I know that low temps can affect battery life, but I mean this straight up took a nose dive. And adding one more phone to charge shouldn't be anything to this, so I don't know what happened. For the sake of giving a thorough review, I'll discuss the other aspects of this device as well. 1. When it charges devices, it actually is able to charge them pretty quickly when paired with a good cable (even if it didn't charge my devices all the way, but whatever). 2. The design is sleek and fairly slim, I appreciated that it was easy to fit into a small duffle bag with all my cables and CPAP parts without it being too big or awkward to fit everything nicely. It is a bit heavy, but this is supposed to be a pretty hefty power unit so I figured that would be the case. 3. I'll have to try it some more before I really say it was 100% worth the money. Here's where I stand currently: My hypothesis is that if I could keep it somewhat insulated (but still with good ventilation, there are cooling fans built into it) and ONLY run my CPAP off of this, then it would probably handle that great. But that means I'll need to plan on bringing a separate power bank just for charging devices. So it is really going to be only good for one thing for me, however, compared to just about any of the other suitable options capable of power a CPAP, this one is probably the most affordable. Pros vs. Cons I guess. I kinda wish I would've just waited and gotten a better (and slightly more expensive) one, but if I can get this to work for my CPAP through at least one night (I am planning on getting one of those solar charging panels to charge it during the day) then I'll be content. Those are my thoughts. Take them to heart, or don't. I don't care. It's your money. You can do what you want with it. Go ahead and buy this or go buy like 15 bags of gummy bears, makes no difference to me. Thank you for reading all the way through this. Don't forget to like, share, and subscribe. See you on the next episode.
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Reviewed in the United States on July 8, 2025 by I. Lorton