Bests & Worsts Reviews from Amazon

I am very unimpressed with this power bank. I bought it for a trip I was taking where I wouldn't have electricity. The day before my trip, I charged it until all lights were blue. When I tried to see how much it would power something up, I tried to power up my phone which was at 30% battery life. The bank died after 10 minutes and only charged my phone up to 45%... I was very frustrated that this didn't work.