1、Automatic Charging: The battery charger step up boost module can do automatic charging, which is very convenient and efficient. 2、Professional Chip: Battery charger step up boost module adopts professional process chip, which can effectively defend the battery voltage below the input voltage and prevent the battery from short circuit. 3、High Adaptability: Our battery charger step up boost module is highly adaptable to the input power and has the ability to drive. 4、Overvoltage Protection: This battery step up boost module also has overvoltage protection to make the process of using it safer. 5、Made of PCB: The module is made of PCB, which is light weight, very easy to carry and install, and friendly to novices. Item Type: Battery Charger Step Up Boost Module Material: PCB 1 x Battery Charger Step Up Boost Module