TP4056 Micro USB Lithium Battery Charging Module with Protection

The TP4056 Micro USB Charging Module is a compact, cost-effective standalone charger designed for single-cell lithium-ion and lithium-polymer batteries. Based on the TP4056 constant-current/constant-voltage linear charging IC combined with the DW01A protection IC and FS8205A dual MOSFET, it provides safe, efficient charging along with built-in overcharge, over-discharge, and overcurrent protection for 3.7V Li-ion/LiPo cells such as 18650 batteries.

Key Features

• Micro USB input for convenient 5V charging
• Constant-current/constant-voltage (CC/CV) linear charging
• Default 1A charging current, adjustable via onboard resistor
• Built-in overcharge and over-discharge protection
• Overcurrent and short-circuit protection
• Automatic charge termination at full voltage
• Dual LED indicators for charging and full-charge status
• Trickle charge mode for deeply discharged batteries
• Compact, lightweight board for easy integration
• Ideal for DIY power banks, robotics, and battery-powered projects

Technical Specifications

Applications

• DIY Power Banks and Portable Chargers
• 18650 Battery Charging Systems
• Robotics and Battery-Powered Projects
• IoT and Wearable Device Charging
• Solar-Powered Battery Charging Setups
• Arduino and ESP32 Battery Backup Systems
• Educational Electronics Projects

Important Notes

• Use only with single-cell 3.7V Li-ion or LiPo batteries; do not use with multi-cell packs without a dedicated BMS.
• Default charging current is 1A; verify the onboard resistor value before modifying for a different current.
• Red LED indicates active charging; blue or green LED indicates charge complete.
• Ensure correct battery polarity before connecting to avoid damage.
• Some board variants do not include protection circuitry; confirm your specific module includes the DW01A IC if protection is required.
• Avoid exposing the module to moisture or excessive heat during operation.