Efficiently charge 3.7V Li-ion batteries with the TP4056 Micro USB module. Features over-discharge protection for safe, reliable DIY power projects.
The TP4056 Lithium Battery Charging Module is a complete constant-current/constant-voltage linear charger for single-cell lithium-ion batteries. This specific version includes a dual-protection IC, which safeguards your battery against over-charging, over-discharging, and over-current scenarios. It features a convenient Micro USB port for easy connection to any phone charger or 5V power source. Whether you are building a power bank, a portable DIY gadget, or repairing electronic toys, this module ensures your lithium batteries stay healthy and safe.
Built-in Protection: Includes DW01 protection IC to prevent battery damage from low voltage or short circuits.
Dual Status LEDs: Red LED indicates "Charging" and Blue/Green LED indicates "Fully Charged."
Adjustable Current: Default charging current is 1A, which can be modified by changing the RPROG resistor.
Micro USB Input: Easy to power using standard smartphone cables.
Solder Pads: Includes additional solder pads for hard-wiring the input power if Micro USB is not used.
DIY Power Banks and portable chargers.
Arduino and Raspberry Pi battery-powered projects.
Replacing internal charging circuits in portable electronics.
LED flashlights and handheld gadgets.
18650 battery charging stations.
Input Voltage: 4.5V to 5.5V DC
Charging Precision: 1.5%
Full Charge Voltage: 4.2V
Max Charging Current: 1000mA (1A)
Over-Discharge Protection Trigger: 2.5V
Over-Current Protection Trigger: 3A
Input Interface: Micro USB
Operating Temperature: -10°C to +85°C
Data Sheet: TP4056 Official Datasheet (PDF)