Battery Type: Li-polymer batter
Solar Power: Single crystal 1.5W
Input: DC 5V/1.5A
Output: DC 5V/2.1A max
Charging Time: 8-10h
Size: 5.47in x 2.59in x 0.79in
Great Back Up Power
I jave two of these and they work great. It's nice to have that power bank with you so you don't have to worry about any gear going dead. You can charge them in your house or ny the sun. The only thing that I found that won't work is placing them on the dashboard of my truck in the sun, they won't charge. Mo matter how long I leave them on the fash, they just won't charge. So I charge them in the house then put them in my truck. This is an item that always have with me.