TES-33 Battery Capacity Tester (RS-232) 1).Test Condition W/O shutting Down Battery 2).Compact and Light ... 3).RS-232 TES-33 Battery Capacity Tester (RS-232) Test Condition Without Shutting Down Battery. Simultaneously Measure Battery Resistance, Voltage ... ) × 94(W) × 49(H)mmAccessories Clip type test lead with temperature sensor, Pin type test lead, 3092CP DCA current adaptor, Zero adjustment board ...