EnginStar Portable Power Station 300W 296Wh Battery Bank with 110V Pure Sine Wave AC Outlet for Outdoors Camping Hunting and Emergency, 80000mAh Backup Battery Power Supply for CPAP

I live in an area where we tend to loose power when we get strong thunderstorms, I need power for my CPAP so I can sleep at night. This unit has provided the power I need to operate my machine without worrying about a power outage and allows me get a full nights sleep. With the solar panel charging I know I will have the abliity to keep my phone charged and still have plenty of power when I need it even the outage persists.I’m thinking I should get a second one to add to my camping gear because it is also light enough to carry even with the solar panels. Great product I can count on it when I need it.

This battery has been the perfect addition to my 360 photo business. It’s lightweight it charges quickly and I can plug in a TV and Wi-Fi tower and the battery lasts for over three hours. It’s so good that I purchased another one.

I am beyond pleased with how well this thing worked and want to offer my particular use case for anyone else in a similar situation.I use a CPAP and had to drive from California to DC. I planned to camp most nights, so having a power pack to run the CPAP (an AirSense something-or-other) was a must. I used a 12V cigarette lighter power adapter for the CPAP rather than the 120V supply, and this machine kept the CPAP, a fan, and my phone charging all night long without any issues. I even forgot to charge it one day and it still had enough juice for a second night.During the day, while driving, I charged the unit via its 12 cigarette lighter charger. But, I was also working remotely while on the road and had my laptop hooked up to the 120VAC outlet.Even with all of this heavy use it performed flawlessly. My fears of not having enough power to last all night were unfounded and if, for some insane reason, I ever need another one I'd get one of these.

I purchased this item as a back power source to power my work laptop and internet equipment for planned electrical work on my home. The unit successfully handled the internet equipment & mobile phones, however, it did not power my laptop. Had to use a different source for the laptop computer.

The media could not be loaded. Update June 15, 2024: The company did finally respond to me. They asked me to send the unit back (to someplace in Utah). I had to pay for shipping back to them ($30 given I am in Michigan), but they did send a replacement unit back to me. I am testing the new r300 a bit more than I previously did with the first unit. I have fully charged and discharged the unit 3 times, it appears this unit is behaving as expected.Orig review:I purchased a R300 in October 2023 (it's May 2024 at the time of this review). I used the device one time to test if my CPAP machine would work as advertised. It did. I had not used it since, I am planning on going camping soon and got it out to charge up etc. The unit won't take a charge. It shows 2 or 3 bars for a short while, then jumps to 100% and stops charging (if it ever really was). I sent an email to [email protected] with description of issue, my purchase date and a video of the unit doing as I described. 2 days and radio silence, the website is not responding (nothing ever shows up), the Facebook page is gone. Sent word on Twitter. I am not having warm and fuzzy feelings that I didn't just waste my money on this product. At this point it was too good to be true. Pretty disappointment...If they respond I will update my review.

I recently purchased this portable power station, and it has quickly become one of my go-to pieces of gear for outdoor activities and emergency power backup. Whether I’m camping, road tripping, or facing a power outage, this device provides reliable and consistent power for all my essentials.Key Features I Loved:Power Capacity: The battery size is more than enough to charge my phone multiple times, keep my laptop running, and even power small appliances like a mini-fridge. It has a solid capacity, and I never worry about running out of juice. Also I used it for my husband's Cpap machine! Lasted for 3 days!Multiple Outputs: It offers a variety of output ports, including USB, AC, and DC options, allowing me to charge multiple devices simultaneously. The addition of a fast-charging port is a great bonus.Compact & Lightweight: Despite its impressive power, the unit is surprisingly compact and lightweight. It’s easy to carry around and fits nicely in my car or backpack without taking up too much space.Durable Build: The design is rugged, and it feels sturdy. I’ve taken it on a few trips now, and it has held up well to the elements, including a bit of rain and rough handling.Solar Charging Compatibility: I love that it’s compatible with solar panels (sold separately). It’s great for long camping trips or emergencies when there’s no access to an outlet.Areas for Improvement:The only minor downside is that it takes a bit of time to recharge fully if you’re using a standard wall outlet, but this is typical for larger capacity units. The solar recharge is a fantastic option but depends on sunlight availability.Overall Verdict:This portable power station is a fantastic investment for anyone who needs reliable power on the go. It’s versatile, well-designed, and offers great peace of mind, whether you’re off the grid or just need a reliable backup power source. Highly recommend!