JIABAIDA 4S 100A LiFePO4 BMS 12V Same Port Balance Battery Management System

This is a 4S 100A LiFePO4 battery management system designed for 12V energy packs with a 3.2V cell rating. Outfitted with an integrated same-port passive balancing board layout, an aluminum heat sink shield, and dual NTC temperature sensor tracking, this heavy-duty protection card safeguards off-grid solar storage, deep-cycle marine inverters, and electric vehicles from overcurrent and short-circuit faults.

This 4S 100A LiFePO4 BMS is a professional-grade hardware protection circuit board engineered to monitor, balance, and safeguard 12V 4-Series Lithium Iron Phosphate battery packs. Driven by an advanced centralized control architecture, this system coordinates real-time passive cell balancing along a integrated same-port design logic where charging and discharging current lines use matching pathways. The circuit board is layered beneath a thick, heavy-duty aluminum heat sink plate that accelerates heat dissipation away from switching MOSFET arrays to maintain system cool under maximum current strain. It is equipped with dedicated external NTC temperature sensing probes that constantly monitor the thermal environment of the core cells to prevent dangerous thermal runway events. Designed to preserve cell lifespan, this module protects vulnerable packs against continuous over-charging, over-discharging, current surges, and short circuit faults in high-capacity energy configurations.