TP4056 1A Lithium Battery Charging Module with Type-C USB Interface

The TP4056 1A Lithium Battery Charging Module is a compact, reliable solution for charging single-cell 3.7V Lithium Polymer (LiPo) batteries, including popular 18650 cells. Designed for batteries without built-in protection circuits, this module integrates advanced features to ensure safe and efficient charging.

Built around the TP4056 charging IC and DW01 Deep Drain Protection IC, it supports a charge current of up to 1A and offers multiple layers of protection, including over-voltage, under-voltage, and reverse polarity safeguards. The module automatically stops charging when the battery reaches full capacity and disconnects the load if the voltage drops too low to prevent deep discharge damage.

Key Features

• Under-Voltage Cut-Off / Deep Drain Protection: Protects the cell by disconnecting the load when voltage falls below 2.4V.
• Over-Current Protection: Ensures safe operation up to 3A current.
• Adjustable Charge Current: Easily set the current via the onboard RPROG resistor (default 1A with a 1.2k resistor).
• Over-Voltage Charging Protection: Safeguards batteries during the charge cycle.
• USB Type-C Input: Modern, reversible USB Type-C charging port.
• LED Indicators: Red LED indicates charging; Blue LED signals full charge.

Specifications

• Module Name: Rechargeable Lithium Battery Charging Module
• Charging Method: Linear charge (accuracy 1.5%)
• Charging Current: Adjustable up to 1A
• Input Voltage: 4.5V—5.5V
• Full Charge Voltage: 4.2V
• Over-Discharge Protection Voltage: 2.5V
• Over-Current Protection: 3A
• Input Interface: USB Type-C or IN+/IN- pads
• Working Temperature: -10C to +85C
• Polarity Reversal: Not allowed
• Weight: 1.7g
• Dimensions: 28 x 17 x 1.1mm

How to Use the Module

1. Connect Power Input: Use a USB Type-C cable or connect a 5V DC power source to the IN+/IN- pads.
2. Connect the Battery: Attach the cell to the B+/B- pads for charging.
3. Connect the Load: Optionally connect a load to the OUT+/OUT- pads (disconnect during charging for safety).

LED Status Indicators:

• Red: Charging in progress.
• Blue: Charge complete.

Important Notes

• Ensure correct polarity when connecting the battery. Reverse polarity may damage the module.
• Disconnect the load while charging to optimize performance and protection.

This versatile, safety-focused module is ideal for DIY electronics, robotics, and portable device projects, offering an affordable yet high-performance charging solution.