Press the "Batt.Type" button to the user settings or select battery type or exit the program, press the "Start" button twice to the parameters setting, press the "Dec." or "Inc." button to switchover, press and hold the "Start" button to charge battery.
Using superior chip and materials to deliver quality performance, and the charger is designed with Reverse Polarity Protection, Short Circuit Protection, Over-Charge Protection, Over-Current Protection and Over-Temperature Protection for safety.