TP4056 Type-C 18650 Lithium Battery Charger Module with Protection – 1A 5V Charging Board

A compact and reliable TP4056 Type-C lithium battery charging module with built-in protection circuitry. Designed for safely charging 18650 and other 3.7V lithium-ion batteries, this module combines both charging and protection functions in one board.

With a convenient USB Type-C input, it can be powered directly from standard phone chargers, making it ideal for DIY battery packs, power banks, and portable electronics.

Key features

• TP4056 charging IC with integrated protection module
• USB Type-C input for easy power connection
• 1A charging current (typical)
• 4.2V charging cut-off voltage (±1%)
• Built-in overcharge, over-discharge, and overcurrent protection
• Status indicators for charging and full charge
• Compact size for embedded and portable designs

Pinout & wiring

Power input

• Type-C USB – 5V input
• IN+ – 5V input (alternative to USB)
• IN- – Ground

Battery connection

• B+ – Battery positive
• B- – Battery negative

Output (protected)

• OUT+ – Output positive
• OUT- – Output negative

Note: Always connect the battery to B+ and B-. Use OUT+ and OUT- to power your load.

LED indicators

• Red LED – Charging
• Green LED – Fully charged

Specifications

Common applications

• 18650 battery charging circuits
• DIY power banks
• Portable electronics and IoT devices
• Battery-powered Arduino and ESP32 projects
• Rechargeable battery packs

Important notes

• Use a 5V power supply capable of at least 1A for proper charging
• The module may require initial charging to activate output after connecting a battery
• Ensure correct polarity when connecting the battery
• Designed for single-cell (1S) lithium batteries only

Tip: This module is ideal for building safe and compact rechargeable systems without needing a separate protection board.