Feature:1. Premium Material: This lithium battery charger module is made of premium PCB board, wear resistant and durable, with stable contact.2. Strong Adaptability: Boost lithium battery charger module has strong adaptability to input power, over voltage protection battery.3. Safety Protection: The use of this battery charger board can guard the battery voltage below the input voltage and battery short circuit.4. Stable Performance: 3S Type C to 12.6V boost lithium battery charger module, DC 36V input voltage, with stable performance.5. Easy To Operate: This Li ion battery charger board has clear instructions, easy to understand and operate, compact and easy to install.Specification:Item Type: Battery Charger ModuleMaterial: PCB3 Cell (3S) 12.6V Version:Input Voltage: DC 3-6V (DC 3.7V 5V Recommended)Charging Voltage: 12.6V.Package List:2 x Battery Charger ModuleNote:Match the right model size before use.