The TP4056 module is a complete constant current-voltage linear charging module for single-cell 3.7 V lithium batteries. During charging and discharging, it will continuously monitor the battery's voltage level and protects against overcharging and undercharging. It features two status outputs, one for charging in progress and the other for charging finished a glowing red LED indicates charging in progress and a glowing green LED indicates charging complete. It also has a programmable charge current of up to 1A.
|Input Voltage||4.5-5.5 volts|
|Input Interface Type||Micro USB|
|Charging Method||Linear Charge|
|Full Charge Voltage||4.2 volts|