... and Light weight 3).RS-232 TES-33 Battery Capacity Tester (RS-232) Test Condition Without Shutting Down Battery. Simultaneously ... -acid batteries..Battery Capacity 0 to 1200AHResistanceRanges : 4mΩ, 40mΩ, 400mΩ, 4Ω, 40Ω, 400Ω Resolution : 1μΩ , 10μΩ , 100μΩ , 1mΩ , 10mΩ , 100m ... Condition Current : Approx. 40mA, 4mA, 400μA, 40μA, 4μA Frequency : 1KHz±30HzDC VoltageRange : 6V, 60V Resolution : 1mV, ...