Specification
• Battery Type: LiFePO4 Lithium Iron Phosphate (LFP)
• Battery Configuration: 4S 12.8V LiFePO4 Battery Pack
• Continuous Working Current: 100A / 150A Supported
• Over Charge Protection Voltage: 3.65V ±0.05V Per Cell
• Over Discharge Protection Voltage: 2.30V ±0.10V Per Cell
• Active Balancing Function: High Speed Active Balancer
• Balance Current Capacity: Maximum 5.5A Active Balance
• Over Current Protection: 2.5–3.5 Times Rated Current
• Charging Current Support: Up to 100A / 150A
• Board Size: 150mm × 75mm × 8mm Aluminum Heatsink Design
Description
This HBJ 4S 12V LiFePO4 BMS is designed for high-current lithium iron phosphate battery packs requiring fast and efficient cell balancing. With a powerful 5.5A active balancing system, it quickly equalizes cell voltage to extend battery life and improve overall performance. The aluminum heatsink structure ensures excellent heat dissipation, while built-in protections safeguard the battery from overcharge, over-discharge, overcurrent, and short circuit conditions.
Application
• 12V LiFePO4 battery pack protection
• Start-stop automotive lithium battery systems
• Solar energy storage battery packs
• Electric bike, inverter, and power backup systems
• DIY high current LiFePO4 battery projects

Specification
• Battery Type: LiFePO4 Lithium Iron Phosphate (LFP)
• Battery Configuration: 4S 12.8V LiFePO4 Battery Pack
• Continuous Working Current: 100A / 150A Supported
• Over Charge Protection Voltage: 3.65V ±0.05V Per Cell
• Over Discharge Protection Voltage: 2.30V ±0.10V Per Cell
• Active Balancing Function: High Speed Active Balancer
• Balance Current Capacity: Maximum 5.5A Active Balance
• Over Current Protection: 2.5–3.5 Times Rated Current
• Charging Current Support: Up to 100A / 150A
• Board Size: 150mm × 75mm × 8mm Aluminum Heatsink Design
Description
This HBJ 4S 12V LiFePO4 BMS is designed for high-current lithium iron phosphate battery packs requiring fast and efficient cell balancing. With a powerful 5.5A active balancing system, it quickly equalizes cell voltage to extend battery life and improve overall performance. The aluminum heatsink structure ensures excellent heat dissipation, while built-in protections safeguard the battery from overcharge, over-discharge, overcurrent, and short circuit conditions.
Application
• 12V LiFePO4 battery pack protection
• Start-stop automotive lithium battery systems
• Solar energy storage battery packs
• Electric bike, inverter, and power backup systems
• DIY high current LiFePO4 battery projects