The TP4056 Micro USB 5V 1A Charging Circuit Module is a compact and efficient solution for charging single-cell 3.7V lithium-ion or lithium-polymer batteries. Powered by the popular TP4056 charging IC, this module uses a constant current / constant voltage (CC/CV) charging method to ensure safe, stable, and reliable battery charging.

The module accepts a 5V input via a Micro USB port, making it compatible with standard USB adapters, power banks, and computer USB ports. It supports a charging current of up to 1A, which can be adjusted using an onboard resistor to suit different battery capacities. Integrated LED indicators clearly show the charging status—red for charging and blue/green when fully charged.

Many variants of the TP4056 module include battery protection circuitry, offering safeguards such as overcharge, over-discharge, overcurrent, and short-circuit protection, significantly improving battery safety and lifespan. The clearly labeled B+ and B- terminals make battery connection simple and secure.

Widely used in DIY power banks, robotics projects, IoT devices, wearable electronics, and portable embedded systems, the TP4056 charging module is ideal for both beginners and professionals. Its compact size, ease of use, and reliability make it a must-have component for any battery-powered electronics project.