How To Use A Digital Multimeter On A Car Battery. Under the hood touch the negative terminal black with the negative meter probe also black. The first test with your multimeter will measure DC voltage indicated with a solid line and a dashed line above a letter V.
You would need to connect the probes to the battery terminals. Set the dial to 20 which will allow you to accurately measure between 0-20 Volts. Turn on your multimeter and touch the black probe on the negative terminal of the car battery.
Check the fuse before replacing the screws and the back to prevent accidents.
Park the car in a safe place out of the way and let it cool down. Simple steps to check a car battery with a multimeter. For your battery to pass a load test the multimeter must read between 95 to 105 volts straight for 30 seconds when the battery is tested. You can use a multi-meter for checking voltage current and resistance.
