Features 1、Easy Operation: Press once to display the starting voltage, long press to flash, and then set the starting voltage by pressing the start and stop button. 2、Working Principle: The generator charges the battery, the charging reaches the stop voltage set value, the relay is disconnected and the charging is stopped. 3、Digital Display: The charging control board has a digital display, which is convenient to observe the voltage value and greatly improves the control efficiency. 4、Compact Size: The battery charging control module has a compact size, easy to install and takes up little space, and is suitable for a wide range of applications. 5、Good Protection: Protect the battery from overcharge and overdischarge during the charging process, provide good protection, has strong practicability. Specification Item Type: Battery Charging Control Module Material: PCB Size: Approx. 41 x 54 x 18mm / 1.6 x 2.1 x 0.7in Package List 1 x Battery Charging Control Module