TP5100 2A 4.2v 8.4v Dual One/Two Lithium Battery Charge Management Board

The TP5100 4.2V / 8.4V Lithium Battery Charging Board is a high-efficiency charge management module designed for safely charging single-cell (1S) or dual-cell (2S) lithium-ion batteries. Powered by a switching-mode charger IC, it delivers stable, fast, and efficient charging up to 2A, making it ideal for modern electronics projects.

Unlike basic linear chargers, the TP5100 uses a high-frequency DC-DC architecture, reducing heat generation and improving efficiency—especially useful when charging from higher input voltages.

This module supports the complete lithium battery charging cycle, including pre-charge, constant-current (CC), and constant-voltage (CV) stages, ensuring battery longevity and safety. On-board indicator LEDs provide clear charging and full-charge status.

Key Features

• Supports 1S (4.2V) and 2S (8.4V) lithium-ion batteries

• Up to 2A charging current (adjustable via resistor)

• Wide DC input voltage range (5V–15V)

• High-efficiency switch-mode charging design

• Intelligent CC/CV charging algorithm

• Built-in protections: over-current, over-temperature, reverse polarity

• On-board charging status LEDs

• Compact PCB – ideal for embedded and portable projects

 Applications

• DIY electronics projects

• Power banks & battery packs

• Robotics & automation systems

• IoT devices

• Portable tools & gadgets

• Arduino / ESP32 / Raspberry Pi battery solutions

Package Includes

• 1 × TP5100 4.2v 8.4v Single Double Lithium Battery Charge Management Liion Battery Compatible 2A Charging Board