BMS Protection Board 4S 10A Li-ion (square, 4 MOSFET)

A miniature square BMS (Battery Management System) protection module 4S 10A is designed for power controllers and battery pack assembly with a nominal voltage of 14.8V (16.8V at full charge) made up of 4 Li-ion cells connected in series. Reliable power section: Equipped with 4 power MOSFET transistors that provide a stable operating current of up to 10A and efficient heat dissipation in a compact size. Comprehensive protection system: Automatically disconnects the battery when any cell is overcharged above 4.25V, overdischarged below 2.55V, or in case of a short circuit or current overload. Universal common port: Charging and discharging are carried out through the same contact pads (P+ and P-), which simplifies soldering and installation into portable devices. Features Configuration — 4S (4 Li-ion cells in series, nominal 14.8 V, full charge 16.8 V) Battery type — Li-ion / Li-Po (3.6 V / 3.7 V per cell) Maximum operating current — 10 A (continuous) Peak current — Up to 20 A (short-term) Power switches — 4 power MOSFET transistors (2x2) Port type — Common port (Common Port: P+, P-) Overcharge protection threshold — 4.25 V ±0.05 V per cell Overdischarge protection threshold — 2.55 V ±0.1 V per cell Protection — Against overcharge, overdischarge, short circuit and overcurrent Form factor — Square compact housing (about 18x18 mm)