TP4056 Type-C Input Interface USB 5V 1A Compatible with 18650 Lithium Battery Charger Module Charging Boards with Dual Protection Functions.

The TP4056 1A Li-Ion Lithium Battery Charging Module – Type C USB is a 3.7V lithium battery charger module has onboard Micro USB interface. With Type C USB onboard connector, you can directly connect to computer USB port for battery charging. If USB is not available you can use an external source voltage at IN /IN- pads, great for DIY projects. It is small size and lightweight. TP4056 Other features include the current monitor, under-voltage lockout, automatic recharge, and two status pin to indicate charge termination and the presence of an input voltage.