This White 4S 100A LiFePO4 BMS Protection Board is engineered for 4-series LiFePO4 battery packs with a nominal voltage of 14.4V. It provides reliable battery management, including overcharge, over-discharge, overcurrent, and short-circuit protection, along with cell balancing during charging. Designed for high current applications up to 100A, it ensures safety, prolongs battery life, and optimizes battery performance in electric vehicles, power tools, and energy storage systems.