Thumb Score: +1

This big battery bank has a built in AC plug, so it can work just like plugging into the wall, without needing extra adapters. Also, it’s got a huge capacity (40,200 mAh). It’ll work fine for charging phones, but I plan on using it to run a large fan and to keep as a backup power source for emergencies. It could even run my CPAP without needing any special cables. It’s made with LG cells (12x 18650 at 3350mAh), so it ought to hold it’s capacity and be reliable. Plus, right now there’s a 50% code.