Slot1;Input DC 5V;Output DC 3.7V/500mA.
Convenient to carry, small in size and convenient to charge.
With overcharge protection, over discharge protection, over current protection, over temperature protection.
With LED indicator, red lighting when charging, green lighting when fully charged.
Compatible Batteries 10440, 14500, 14650, 16340, 16650, 18500, 18350,18650.