Size:84.6*78.3*26mm Material: Plastic Surface finish: varnishing Optional color: white, black Capacity: 2600mah*2=5200mAh Battery type: 18650（LG battery） Input: 5V/1A, micro USB port Output: 5V/1A and 5V/2.1A, USB port Charging time: about 8 hours Life circle: more than 500 times Protection: overvoltage, over current, short-circuit