A:Answer I plugged mine in @ 4% last night at 10 p.m. to a USB port in the wall and it is now 3:30 the next day and it's at about 95%. So in about 17 hours, it is not fully charged. Next time I charge it I'm going to use a regular plug in the wall instead of just the USB and see if that helps. Also it does not charge my Samsung Galaxy S7 very quickly. After charging that phone plus a little SanDisk music player and wireless Samsung earbuds at the same time it was down to about 40%. Does not seem to be doing what it should, I would say it's not even possible that it will charge my phone 11 times. Not possible. I may be returning mine. Just got it as a gift for Christmas.