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

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.

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,

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.

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

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.

Works amazing. I would recommend to anyone who looks for a power bank to change your things when camping. Last a good while and doesn't take long to charge. Even can get a solar panel charger so no need for plug ins.

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

This is wonderful device. I COMPARED THE PRICE and this product is exactly the same as the other brand maybe better. I just used it at the Reggae festival and it powered a fan and laptop all day!!! With energy to spare. So happy with this!