TP5100 2A Li-ion / LiPo Battery Charger Module (Single & Dual Cell)

TP5100 2A Li-ion / LiPo Battery Charger Module

A compact and efficient battery charger module based on the TP5100 IC, supporting both single-cell (4.2V) and dual-cell (8.4V) Li-ion/LiPo batteries. With up to 2A charging current and built-in protection, it's ideal for DIY power banks, portable devices, and battery management systems.

Key Features

• TP5100 IC with up to 2A charging current
• Supports 1S (4.2V) and 2S (8.4V) Li-ion/LiPo battery packs
• Built-in overcharge, over-discharge, and short circuit protection
• 220µH toroidal inductor for stable switching regulation
• SS34A Schottky diode for efficient rectification
• R100 current sense resistors for accurate current control
• Compact green PCB with SMD components
• Input via solder pads (B+/B- for battery, IN+/IN- for input)

Specifications

• IC: TP5100
• Input Voltage: 5V – 8.4V DC
• Charging Current: Up to 2A
• Output: 4.2V (1S) or 8.4V (2S)
• Inductor: 220µH
• PCB Size: ~28 x 22mm

Applications

• DIY power banks
• Li-ion / LiPo battery chargers
• Portable electronics
• Solar charging systems
• Arduino and ESP32 battery projects