This small module is designed to charge single-cell 3.6/3.7V lithium-ion batteries using a mini USB cable or a separate 5V PSU. The module is based upon the TP4056 single chip Li-on charger and delivers a maximum charge rate of 1 Amp.
The charge current can be reduced by modifying the RProg resistor: –
|RProg Resistor||Charge Current (mA)|
The module has two LED indicators, red for charging and Green for fully charged.
Warning: This unit is not protected against an incorrectly connected Li-on battery – Please double check the polarity before connection.