This high-efficiency Type-C USB Fast Charging Board is designed for polymer ternary lithium batteries, featuring the IP2312 charge management chip. Supporting a maximum current of 3A, it utilizes a complete Constant Current/Constant Voltage (CC/CV) charging profile for optimized battery performance and protection. Ideal for embedded systems, DIY electronics, and power banks, this board is engineered for flexibility, precision, and efficiency in high-current charging applications.

 

⚠️ Note: Not compatible with 3.2V lithium iron phosphate batteries. This board does not include battery protection or power level indicators.

 

Features:

• High Current Output:
  Supports up to 3A charging for rapid energy transfer to lithium polymer batteries.

• Adjustable Charging Current:
  Easily fine-tune charging current by modifying onboard resistance:

  • Default: 3A

  • 2A: Remove specific resistor

  • 1A: Replace resistor with 135kΩ

• Dual Output Voltage Options:
  Available in two charging cut-off voltage configurations:

  • 4.2V (Standard Li-ion)

  • 4.35V (High-voltage Li-ion)

• Efficient Power Conversion:
  Delivers exceptional conversion efficiency:

  • 1A: 95%

  • 2A: 94%

  • 3A: 93%

• Advanced Charging Algorithm:
  Full CC/CV mode:

  • Trickle charge at 100mA when battery < 3.0V

  • Constant current mode between 3.0V and near cut-off

  • Constant voltage mode near 4.2V/4.35V

  • Auto recharging when voltage drops below 4.1V

• Input Voltage Range:
  Accepts 4.5V to 5.5V, making it ideal for USB power sources.

• LED Status Indicators:

  • Red LED: Charging

  • Blue LED: Fully charged

Specifications:

Applications:

• DIY Power Banks

• Portable Electronic Projects

• Embedded Battery-Powered Devices

• Battery Maintenance Systems