Item Type: Battery Charger Module Material: PCB 3 Cell (3S) 12.6V Version: Input Voltage: DC 3-6V (DC 3.7V 5V Recommended) Charging Voltage: 12.6V1Premium Material: This lithium battery charger module is made of premium PCB board, wear resistant and durable, with stable contact. 2Strong Adaptability: Boost lithium battery charger module has strong adaptability to input power, over voltage protection battery. 3Safety Protection: The use of this battery charger board can guard the battery voltage below the input voltage and battery short circuit. 4Stable Performance: 3S Type C to 12. 6V boost lithium battery charger module, DC 3?6V input voltage, with stable performance. 5Easy To Operate: This Li ion battery charger board has clear instructions, easy to understand and operate, compact and easy to install. 2 xBattery Charger Module