ITEM NAME:3S 10A 12V Lithium Battery Charger Protection Board BMS Li-ion Charging Mod BX.Can be applied to various 3.7V lithium core. 1pc x lithium Battery Protection Board. Short circuit protection. Internal resistance: ï ¼Å“60mÃŽ ©. Overcurrent protection. Service life: ï ¼Å¾30,000 hours.