... Condition W/O shutting Down Battery 2).Compact and Light weight 3).RS-232 TES-33 Battery Capacity Tester (RS-232) Test Condition ... Without Shutting Down Battery. Simultaneously Measure Battery Resistance, Voltage, Current, Temperature. Auto ... , Optical RS232 cable, CD PC software, Carrying case. TES-33 Battery Tester (RS-232)