Nitecore UI2 Dual-Slot USB Charger, for 18650, 21700, 18350, 20700 Batteries

Input DC 5V/2A 10W Output voltage 4.2V±1% Output current 1000mA*2 (MAX) Compatible with Li-ion/IMR: 10340, 10350, 10440, 10500, 12340, 12500, 12650, 13450, 13500, 13650, 14430, 14500, 14650, 16500, 16340 (RCR123), 16650, 17350, 17500,17650, 17670, 18350, 18490, 18500, 18650, 20700, 21700, 22500, 22650, 25500, 26500, 26650