TP4056 Li-ion battery charging module

A TP4056 Li-ion battery charging module is a small electronic module designed to safely charge a single 3.7V lithium-ion or lithium-polymer battery from a 5V power source, such as a USB supply. It uses the TP4056 charging controller to manage the charging process and many versions include overcharge, over-discharge, overcurrent, and short-circuit protection through a protection circuit. The module is commonly used in portable electronics, Arduino projects, robotics, rechargeable battery systems, and DIY power supplies.