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Detailed Description:

The TP4056 Lithium Battery Charging Module is a single-cell charger board based on the TP4056 IC, designed to safely charge 3.7V Li-ion or Li-Po batteries from a 5V USB or adapter source. It supports a charging current of up to 1A and integrates overvoltage, overcurrent, and over-discharge protection through a DW01 protection IC (for protected variant).

This module features a micro USB input port, LED charging indicators, and B+ / B- battery output pads for simple plug-and-play battery management. Widely used in battery-powered projects, IoT devices, wearable tech, flashlights, and DIY electronics.

Key Features:

• Micro USB 5V input or solder pads for 5V IN

• Charges 1S 3.7V Li-ion / Li-Po battery

• Automatic charging and cut-off

• Battery protection (overcharge, over-discharge, short circuit)

• 1A max charging current (adjustable via resistor)

• Red/blue LED indicators: charging/full

• Compatible with 18650, 14500, and flat-cell lithium batteries

• Compact and easy to integrate into battery-powered devices

Technical Specifications:

How to Use:

1. Connect 3.7V Li-ion/Li-Po battery to B+ and B- terminals

2. Power the board via Micro USB or IN+ / IN- pads (5V source)

3. Observe the red LED while charging, which turns blue when full

4. Use OUT+ and OUT- for powering circuits (optional for protected version)

Note: Use the protected version for battery safety; unprotected versions are for controlled environments.

Applications:

• 18650 and lithium battery charging

• Power banks and USB gadgets

• DIY flashlights and battery packs

• Portable IoT devices and Arduino projects

• Wearable electronics and robotics

• Solar-powered battery systems

Package Includes:

• 1 × TP4056 1-Cell Lithium Battery Charging Module