Tests up to 16VoltsMeasures up to 6000 AH batteriesData Storage: 500 string locations of 480 test results stored internallyMemory card storageReference free testing using the unique Reference Developerest individual lead acid cells (upto 16 Volts) approximately 10-16000 AhVoltage: 1.5-20.0 Volts DCTest data Storage; 500 string locations of 480 test results stored internallyPower Requirements: 9.6V, 1600mAH, NiMH internal Swappable battery & ChargerDimension: 11in X 4in X3inWeight: 2.6Lb Approx.