TP4056 Lithium Battery Charger

The TP4056 Lithium Battery Charger Module is a comprehensive and practical solution for charging single-cell lithium-ion and lithium-polymer batteries. This module is designed with a charging current of 1A and a constant voltage of 4.2V, making it perfectly suitable for charging small to medium-sized batteries. The use of a Micro USB input allows this module to be compatible with standard Android phone chargers, making the TP4056 Micro USB Charger Module an ideal choice for portable projects and small power banks.

The TP4056 1A Lithium Battery Charger and Protection Circuit Module intelligently regulates the charging current and voltage, preventing over-voltage and over-current. Additionally, the LEDs on the board indicate the charging status in two modes: fully charged and charging, allowing users to easily monitor the battery's condition.

This module also safely prevents reverse current flow and performs stably under various temperature conditions. The single-cell 4.2V output lithium battery charger module is suitable for use in electronic projects, lithium battery charging, and small devices. Due to its precise and simple design, this module is fully usable by professionals and DIY enthusiasts, enabling direct connection to batteries and electronic loads with limited current. Charging lithium batteries with this module is safe, accurate, and efficient, providing users with a comfortable and reliable experience.

This lithium-ion battery charger module uses two LEDs, red and green, to display the charging status in real-time: a lit red LED indicates the battery is charging, and a lit green LED indicates the charging process is complete. To power the module, you can easily use a Micro USB port, a phone charger, or a 5V adapter, and connect the battery terminals to the B+ and B- pins.

When using, please note that the connection wires should not be too thick to ensure proper conductivity, and the charging wire should not be too thin or excessively long, as this may cause voltage drop and reduce efficiency. A chip temperature of around 60°C during operation is completely normal and not a cause for concern. While reverse polarity at the module's input will not damage the device, reverse polarity at the output connected to the battery can cause serious damage and burn out the chip.

If you intend to power a load with a higher current, it is recommended to take the output from the OUT+ and OUT- pins to ensure proper current protection. To extend the battery's lifespan, it is best to set the charging current to about 37% of the battery's capacity; for example, for a 1000mAh battery, a suitable current is around 400mA.

In situations where the supply voltage is slightly above 5V (e.g., 5.2V), it is advisable to keep the input current below 1000mA to ensure circuit protection and prevent potential damage. Please note that this board does not have protection against excessive internal current, so following the above guidelines is crucial for extending the life and ensuring the health of both the battery and the module.

 TP4056 Module Application:

1. Charging single-cell Lithium-ion and Lithium-polymer batteries
2. Use in small and portable power banks
3. Charging batteries for DIY electronic devices and electronic projects
4. Compatibility with standard smartphone Micro USB chargers

1A Micro USB Lithium Battery Charger Specification:

1. Charging Method: Linear Charging
2. Charging Current: 1 Ampere (adjustable)
3. Charging Accuracy: 1.5%
4. Input Voltage: 4.5V to 5.5V
5. Full Charge Voltage: 4.2V
6. Charge Status Indicator: Blue LED for charging, Red LED for fully charged (for easy battery status monitoring)
7. Input Interface: Micro USB
8. Operating Temperature: -10°C to 85°C
9. Reverse Polarity Protection: No
10. Dimensions: 22 x 17 mm