... , backlight-key and function-keyPre-charge, fast charge and constant voltage charge for charging stages and the variation range of the ... , 500mA, 1000mA, 1500mA, 2000mA, five gears with dip switches offered Tester will stop discharging if one of the conditions below is ... %: discharge firstly, and then charge to 50% capacity Online Functions Tester can be connected with master machine via a USB port ...