1. High capacity, 21600mah, 4-30 times bigger than digital battery. 2. With remind function after fully charge. 3.CE,Fcc,RoHs Technical Parameter Batteries: Lithium-ion/polymerCapacity: 21600 mAh/3.7VOutput voltage: 5V, 7.4V, 9V, 12V, 16V, 19VOutput current: 1~4.2AInput voltage: 13V~19VInput current: 2A~4.2ACharging time: 5~10HUsing time( laptop computer): 4~7HCycle life: Up to 500timesAmbient ...