General description Simple operation allows for a one-step charging process. The charger features a voltage display function, eliminating the need for an external adapter and enabling detection at any time. It boasts ultra-high charging accuracy with an error margin of ± 10 mV and includes multiple protection functions to ensure the safety of both batteries and users. Additionally, it has an automatic repair function for old batteries. Technical specifications Color: Blue Material: Metal Voltage range of adapter: 9V-16V Minimum adapter power: ≥30 W Measurement allowed error: ± 1-3 cm Installation After inserting the adapter, the charger will emit a sound and the screen will display the status. Insert the battery; the charger will beep twice and start charging. Usage The display cycles through showing the total battery voltage and the voltage of each cell. Once the battery is fully charged, the charger will automatically stop charging, the screen will flash, and the buzzer will sound