This is a well designed and built portable Li+ power station for 110 volt AC output loads of 300 Watts continuous, 500 Watts surge, sine-wave output, for 293 Watt hours. It can be charged using included cords and power brick from 100-240 v. AC or 12 volt DC sources, from other 24 volt or 5 volt sources, or from solar panels (not included). Outputs also include 12 volt car port plug or USB A and B, so considerable flexibility.I purchased it primarily as a backup power source for a CPAP in case of power outages. It worked well and the CPAP performed normally. From full charge, just over eight hours of usage left about 40% of charge, so it would not make two full eight-hour nights. Some types of batteries might gain a bit of capacity with serveral cycles. As far as I know that's not true of Li+ cells, but we'll see. A pleasant surprise, more than six week after charging and storing, the unit still shows 98% charge. That's a very low rate of self-discharge, so I won't need to top it up more than a couple times a year to be confident of a full night of CPAP.

Light weight, compact generator that can be charged electrically that holds a charge for a year ! I now have 3 for my home ready for the hurricanes. I was ready to re - charge last years generator prior hurricane and it was still 100 %! Great to have on handThank you ❤️❤️❤️❤️❤️

I’m a 100% full time single parent with 2 teens. And with teens you know that means a lot of electronic devices. I need things that work and things that simplify my life. The Jackery 300 has been one of those purchases. It’s not only reliable but really easy to use.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.

We got this for my husband's CPAP in the event of a power outage from storms/climate crisis. With the humidifier option, it lasts about 7 hours. If the humidifier is turned off, it'll last a considerable amount of time longer - I would say 3 nights' sleep anyway. It's incredibly well-made, easy to use, and reliable.

I can’t have power outages with my work from home job, this has saved me from outages 2 times already in the last month. Would recommend.

I charge cameras, laptops, fpv drones and this thing usually outlasts my needsthe charging speed is incredible when you plug in both the ac adaptor and a 65+ watt usb-c at the same time

I can’t live without my Jackery. We have a couple of them and use them for camping. I use this one inside the house when we lose power. Buy this confidently and without hesitation!

Wish I had bought a larger capacity version. But the silence version a noisy generator is worth every dime.

Just bought this power bank about a month ago and have been charging a lot of things on it to test it out. So far it’s been a pretty good power station and I can’t wait to take it on my future camping trips. Needless to say I would highly recommend this brand.

This allows me to use so many different products away from a power supply. Works great.