Short press power ON, press + and – to adjust voltage,0.1V voltage adjust. Long press Power and “-” button together, If show B0 on the screen, that means the start-up function is open. Long press Power and “-” button together, If show B1 on the screen, that means the start-up function is off. Big battery capacity 1350mAh, and can use for about 3-5 hours. <<Wireless Batteries>>