Input: AC100-240V/47-63 Hz
Output: 4.2V/500 mA
Charge auto cut off: 4.2V±1%
Protection against overcharging.
A light indicator for the battery charge status.
Charging time for Li-ion battery 18650: aprox.3 hours
Li-ion Battery 18650 2400 mAh 3.7V
Built-in protection against overcharging, deep discharging and short-circuit.
Size: length 68 mm, diameter 18 mm
Work time with flashlights: 2-4 hours