TP4056 3.7v Lithium Battery Charging Module (input / output) Micro usb

TP4056 3.7V Lithium Battery Charging Board Module – With Protection and I/O Pins

The TP4056 Charging Module is a compact and efficient board for charging 3.7V lithium-ion or Li-Po batteries. It features a Micro USB input and dedicated IN+ / IN- and OUT+ / OUT- pins, allowing easy integration into battery-powered projects.

This version includes overcharge, over-discharge, and short-circuit protection, making it safe for use in IoT, Arduino, ESP32, and portable embedded systems. Ideal for students, makers, and engineers across Bangladesh building rechargeable devices.

Key Features:

• Charging Voltage: 4.2V

• Input Voltage: 5V via Micro USB or IN+ / IN- pins

• Output Voltage: 3.7V (battery voltage)

• Battery Type: Li-ion / Li-Po (1 cell, 3.7V)

• Charging Current: 1A max

• Built-in protection: Overcharge, Over-discharge, Overcurrent, Short-circuit

• Status LEDs: Red (charging), Blue (fully charged)

• Easy to integrate with Arduino, ESP32, sensors, or IoT nodes

Applications:

• Recharging 3.7V 18650 batteries

• IoT devices and sensor nodes

• Power banks and wearable electronics

• DIY portable and rechargeable devices

• Educational electronics and embedded system projects in Bangladesh

The TP4056 with protection and I/O breakout is a must-have for safely powering your battery-operated electronics projects.