Quick charge with automatic constant current control prevents battery from overcharging, short circuit, and electronic shock.
Specification:
Input Voltage: AC 100V - 240V 47 / 63Hz
Output Voltage: DC 4.2V 350mA battery cut off full.
Battery Type: 1 x 18650 rechargeable battery
Rechargeable Time Limit: About 2 hours
Size: 10.3cm * 3.3cm * 4.2cm