Universal Hub 5Pcs 3S 40A 11.1V/12.6V Lithium Battery BMS Module | 18650 Protection Board with Cell Balancing & Auto Recovery

Take full control of your custom battery setups with the Universal Hub 3S Battery Management System (BMS). Specifically engineered for 3-series (3S) 18650 Lithium-ion cell configurations, this heavy-duty protection board acts as the brain of your battery pack. It safely manages a nominal 11.1V and cuts off precisely at a full 12.6V charge, extending your battery lifespan while maintaining peak efficiency.