1.Polymer Li-battery : 4000mAh/3.7V
2.Input : DC5.0V±0.2V;max 1000mAh
3.Output: DC5.0V±0.2V; 4000mAh
4.Cycle life: ≥500
5.Dimension: 115×65×25 mm
6.Charging time : About5 hours
7.4 LED light, press the switch, the light display from 25%,50%,75%,100%
8.Accessories:USB line,7pcs connector.