Nput port with micro 5pin USB female, can direct use mobile charger for input to the lithium battery, and still retain the input voltage wiring solder joints, can be very convenient.
Connect the battery to B + B -, insert mobile phone charger to the USB Female then red light is charging and green is full of charged.
The input voltage: 5V
Maximum charging current: 1000 mA
Charge cut-off voltage: 4.2 V + / - 1%
The battery overcharge protection voltage: 2.5 V
Battery over-current protection current: 3 A
Input interface: micro USB
Size:2.6 x 1.7 cm
2 x 5V Micro USB 1A 18650 Lithium Battery Charging Board Charger Module
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.