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How to Test a Battery with a Multimeter

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Written by Lifeengineer   

test a battery





A multimeter can be used for a variety of different electronic testing including to test a battery.  Keeping batteries fresh is very important for electronic devices such as smoke alarms.  Make sure the voltage is the batteries are within operating ranges.  This article will show you how, using a multimeter.

test a battery

Step 1:  Turn the multimeter on and set the setting dial to the DC voltage read setting as shown in the photo above.

Step 2: Place the red (+) and black (-) probe inputs into the correct holes.  Some multimeters have the probe wires permanently attached.

Step 3:  Touch the red probe lead to the + terminal of the battery while you touch the black probe lead to the - terminal of the battery.

Step 4: Read the  DC voltage value from the screen of the multimeter.  A typically battery AA, AAA, C, and D should read at least 1.5 volts or slightly greater to be considered good.

A 9 volt battery should read, you guessed it 9 volts or slightly higher.

Other Resources:

How to test a battery with a voltmeter

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