1. Indicator shows power status of external battery.
2. External battery charges through USB cable.
3.Support data sync through case connector.
4.Connector: Micro USB.
5.Capacity: 2000mAH~6600mAh.
6. Input: 5V Max.
1.Ultra slim thin as mobile phone.
2.Overcurrent protectioin.
3.Overcharge protection.
4.High temperature protection.
5.Super ultra working life--1000+times charge.
6.Original Blue Taiyang Polymer lithium-ion batteries core.