2S 6V 100A LiFePO4 BMS Circuit Board is a high-current battery management system designed for 2 series Lithium Iron Phosphate battery packs. This module ensures safe and stable operation of 6.4V nominal LiFePO4 batteries with advanced protection features including overcharge, over-discharge, short circuit, and temperature protection. Available in Bangladesh from BDTronics, this BMS is ideal for compact high-current battery systems used in robotics, solar storage, backup systems, and power tools.

This BMS is specifically designed for 3.2V LiFePO4 cells and must not be used with 3.6V or 3.7V lithium-ion batteries. BDTronics supplies this 2S 100A LiFePO4 BMS module for engineers, students, and DIY developers across Bangladesh.

Features:

• Designed for 2S LiFePO4 battery pack (6.4V nominal)

• Supports high current up to 100A for discharge and protection

• Accurate overcharge protection for each cell

• Over-discharge protection to prevent battery damage

• Built-in cell balancing for extended battery life

• Ultra-fast short circuit protection response

• Temperature protection for safe operation

• Disconnect protection for enhanced system safety

• High efficiency MOSFET design for stable high current handling

• Suitable for compact battery packs and high power applications

• Long cycle life support for LiFePO4 chemistry

• Ideal for solar, robotics, and portable power systems

• Available from BDTronics Bangladesh for reliable sourcing

Specifications:

• Battery type: LiFePO4 (Lithium Iron Phosphate)

• Configuration: 2S (2 cells in series)

• Nominal voltage: 6.4V (3.2V × 2)

• Charging voltage: 7.3V (3.65V × 2)

• Overcharge protection voltage (per cell): 3.61V – 3.69V

• Overcharge protection delay: 1.5 – 2.5 seconds

• Over-discharge protection voltage (per cell): 2.27V – 2.43V

• Over-discharge recovery voltage: 2.45V – 2.65V

• Maximum charging current: 60A

• Maximum discharge current: 100A

• Overcurrent protection: 100A

• Balance current: 50mA

• Balance voltage accuracy: 3.355V – 3.455V

• Short circuit protection: Yes

• Short circuit delay: 100 – 600 µS

• Short circuit recovery: Load disconnect required

• Temperature protection: Yes

• Disconnect protection: Yes

How to Use:

• Connect two LiFePO4 cells in series (2S configuration)

• Connect B- to battery negative terminal

• Connect B1 to the junction between the two cells

• Connect B+ to battery positive terminal

• Connect P+ and P- to load and charger terminals

• Ensure correct wiring before powering the system

• Use only LiFePO4 3.2V cells, do not use lithium-ion 3.7V cells

• Charge with a 7.3V LiFePO4 charger for proper operation

• Avoid exceeding rated current limits during use

Application Areas:

• Small solar battery storage systems

• Robotics and automation power supply

• Portable power packs

• Backup battery systems

• RC hobby battery packs

• Power tools battery packs

• DIY electronics battery projects

• Embedded system power solutions

Package Include:

• 1x 2S 6V 100A LiFePO4 BMS Battery Protection Module

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