Spec.:
1. Battery Type: Li-ion 18650 battery
2. Capacity: 7800mAh/29Wh
3. Input: Mini USB 5V/1000mA
4. Output:2* USB 5V/2100mA
5. Dimension:119.6*62*24.6mm
6. Weight:195g

Features:
1)5 LEDs indicates the Cap,
2)Charging indicate:LEDs display as horse-race lamp; and LEDs will turn off when it is full charged.
3)When it is discharge,press the button,the first LED flicker;
4)Press the button to display power and open up USB output;
5)It can auto detect load,if there have no load,or if the load is full charged,output will shut down after 10 Seconds;
6)Can charge for Ipad and Samsung P1000