What Should A Car Battery Read On A Voltmeter. The first thing to do is make sure you can access the two terminals on the top of the battery. You might find the procedure a bit tricky at first but it is rather easy.
What voltage should a 9V battery read. 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. How to check car battery with multimeter.
Your cars electrical system may have drained it or there may be an issue with your alternator.
A reading of 9V indicates a battery with no to less than 10 discharge. Switch to DC volts. Once the vehicle is started a DVOM should read between 135 to 145 VDC. Select the DC volts position on your multimeter or the 12V setting if you have a dedicated car battery test range.
