How To Test Battery With A Multimeter. Generally your voltage should read close to 126 volts after running your headlights for two minutes and if your voltage value is over 126 then its normal but if your battery goes down to 122 volts then it. Your multimeter should show you the reading and you should record it.

To test the battery turn on your voltmeter put the voltmeter on DCV and make sure that it is far above the battery voltage on most voltmeters there is a setting 20. The battery ratings vary a lot from car to car but choosing 15-20 Volt is good enough. Set your meter to measure in volts.
The voltage should rise to a value between 138 and 145 volts which is the minimum voltage needed to charge a typical 12V battery.
The voltage should rise to a value between 138 and 145 volts which is the minimum voltage needed to charge a typical 12V battery. Set your multimeter to measure direct current voltage on the 20-volt scale or anything close to it. Battery is using Amaron multimeter is using Kaise Multimeter. Turn on the power to your volt meter.

