How To Check Car Battery With Analog Multimeter. If your battery is below 126 volts remove the battery and place it on a charger. If the battery voltage drops below 96 volts this is an indicator of a weak battery.
In the case of a regular AA battery the reading will be 15V approximately. But if you connect the opposite terminals the display will show a negative number eg. It is a matter of seconds and all you need is a multimeter.
Turn the headlights on for two minutes to get rid of any surface charge the battery may have.
How to Check Your Car Battery with a Multimeter. Do not select an alternating current range identified by a number above a squiggly line which resembles a tilde. How to Check Your Car Battery with a Multimeter. Set your multimeter to measure direct current voltage on the 20-volt scale or anything close to it.
