TP4056 1A Li-Ion Battery Charging Board With Micro USB

is a compact and reliable charging module designed for safely charging single-cell 3.7 V lithium-ion (Li-ion) or lithium-polymer (Li-Po) batteries using a standard 5 V USB power source. Based on the TP4056 charging IC, the board uses a constant-current/constant-voltage (CC/CV) linear charging method, which ensures stable charging while protecting the battery from damage. It supports charging currents up to 1A, making it suitable for a wide range of battery capacities used in portable and embedded projects. The built-in current protection enhances safety during charging, while the micro-USB input allows easy connection to USB adapters, power banks, or computer ports. Its small size of approximately 25 × 19 × 10 mm makes it easy to integrate into compact designs. Widely used in DIY electronics, wearable devices, IoT systems, power banks, and battery-powered projects, this charging board offers a simple, efficient, and safe solution for lithium battery charging applications.