Simple operation, the charging process is completed in one step Voltage display function, no need for external adapter, detection at any time Ultra-high charging accuracy, the error is ± 10 mV Multiple protection functions to ensure the safety of batteries and users. Automatic repair function of old battery. Newly designed architecture and balance algorithm, no need to discharge, saving energy warn; to charge, make sure the adapter power is sufficient ( ≥30 W ); To charge, please confirm the voltage range of the adapter (9V-16V) Charger is only suitable for charging Li-ion or Li-polymer batteries Only one battery balance port of the charger can be connected at any time It is forbidden to use 2 or more battery balance ports at the same time Charging Function Description After inserting the adapter, the charger will emit a " " and the screen will display; Insert the battery, the charger will beep twice and start charging. The display cycle shows the total battery voltage and the voltage