How To Test A Battery With A Fluke Multimeter. Place the red test probe of the unit under test in the and press down firmly. The DMM is ready to measure duty cycle when a percent sign appears in the right side of the multimeters display.
Red polarity should be connected to positive and black o ground. Now start the vehicle. First insert the black test lead into the COM jack.
Voltage may be present in the circuit due to charged capacitors.
Since the battery generates DC power therefore we will measure DC voltage. DC voltage is usually marked as a V followed by a short line with a dotted line beneath it. Pop the hood and disconnect the negative cable from the negative battery terminal. Press the HOLD button to capture a stable measurement.
