Joltz Power Banks J4000B Rechargeable High Capacity 4000 mAh Battery

The usb connection on the unit is almost impossible to connect to. I had to look at all the cords I have and find one that was thinner than the rest. The usb CORD connector that came with it is slightly bigger adding to the problem. When connected it is also at a slight angle. I just leave the cord connected because I am afraid of breaking it. I used it once and seems to work. Not something I will use very much.

easy to use for more than one device

It only worked twice then it wouldn't charge anymore.

Joltz Power bank saved my butt, reputation and most probably my job as well. Needing critical data on my device that I was un-aware my normal power cord would fail... The Joltz power Bank effortlessly took command of the dire situation and quickly energized my device, my presentation and my future with ease and without fuss or compatibility errors... Now I charge forward into projects in the field with complete confidence and understanding that power in no longer an issue...anywhere.I have since come to the rescue of others in need .. even some complete strangers.... "Joltz" I tell them ...I am a Hero .... well JHoltz isThanks Joltz ....Power ON !!!!Very satisfied...Jerry Riceout of 5 stars I rate this product a 6

VERY HANDY AND VERY EASY TO USE. I'M GOING TO BUY ONE FOR THE WHOLE FAMILY. COMPACT IN SIZE & VERY PORTABLE.

This thing is great. My daughter charged her Galaxy from 39% to 100% in just over an hour. I'm getting me one too.