TP4056 5V 1A USB TYPE-C 18650 Lithium Battery Charging Board  Module 

USB Battery Charger

*** You will receive 2 modules ***

Input voltage: 4.35-6V (recommended voltage 5 v)

Charge cut-off voltage: 4.2 V + / - 1% 

Maximum charging current output: 1000 ma

Battery overcharge protection voltage: 4.28 V

Battery overcharge lifting voltage: 4.00 V

Battery discharge protection voltage: 3.0 V

Battery discharge termination voltage: 3.2 V

Battery: over-current protection current 3 a

The board size: about 28mm x 17.4mm 

LED indicator: red light for recharging, Green light for charged