... charge, discharge, test, capacity correction, charge / discharge 50% capacityLCD for displaying battery informationLED for indicating working statusWith charge-key, discharge-key, backlight-key ... every batteries. DischargeConstant current discharge for double loads Inner load: 0 ~ 1000mA, adjustable continuously via Battery Manager External load: 0mA, 500mA, 1000mA, 1500mA ...