White 4S 100A LiFePO4 Battery Protection Board – 12.8V Battery Management System (BMS)

The White 4S 100A LiFePO4 Battery Protection Board is a high-current Battery Management System (BMS) designed for 4-cell (4S) Lithium Iron Phosphate (LiFePO4) battery packs. It provides advanced protection against overcharging, over-discharging, overcurrent, and short circuits while balancing individual cells to maximize battery performance and lifespan.

Designed for 4S LiFePO4 battery packs with a nominal voltage of 12.8V and a maximum charging voltage of 14.6V, this BMS supports a continuous discharge current of up to 100A, making it suitable for high-power applications such as solar energy storage, electric vehicles, UPS systems, marine batteries, and portable power stations.

Its robust design ensures safe and reliable battery operation while helping maintain balanced cell voltages during charging and discharging.

Features
Designed for 4S (4-cell series) LiFePO4 battery packs
Nominal battery voltage: 12.8V
Maximum charging voltage: 14.6V
Continuous discharge current: 100A
Built-in cell balancing
Overcharge protection
Over-discharge protection
Overcurrent protection
Short-circuit protection
Temperature protection (available on some models)
High-current MOSFET design for efficient operation
Compact and durable PCB construction

Applications
LiFePO4 battery packs
Solar energy storage systems
Portable power stations
Electric vehicles
Marine battery systems
RV and camper power systems
UPS backup systems
Industrial battery applications
DIY battery pack projects
Off-grid energy storage

Compatible Batteries
4S LiFePO4 battery packs
32700 LiFePO4 cells
26650 LiFePO4 cells
Prismatic LiFePO4 cells
Other 4S Lithium Iron Phosphate battery configurations

Technical Specifications
Battery Type: Lithium Iron Phosphate (LiFePO4)
Battery Configuration: 4 Series (4S)
Nominal Voltage: 12.8V
Maximum Charging Voltage: 14.6V
Continuous Discharge Current: 100A
Peak Current: Model dependent
Balance Function: Yes
Protection Features:
Overcharge protection
Over-discharge protection
Overcurrent protection
Short-circuit protection
Temperature protection (on supported versions)

Package Includes
1 × White 4S 100A LiFePO4 Battery Protection Board