Multimeter-Battery Testing-How to Test a Car Battery with a Multimeter

Multimeter-Battery Testing

How to check a car battery using a multimeter. Does your car not start, do you have dim headlights or interior lights, does the starter sound weak when starting the engine, or does your car die sitting overnight? This video will show you a few ways to test your battery to see if it is bad, is going bad, or is good. A good battery will hold a charge at around 12.6v and while the car is starting it won’t drop below 8-10v.

To check this, you will need a voltmeter select the 12-volt setting and connect the red wire to the battery positive and the black wire to the negative battery terminal. The reading should be 12.6 for a fully charged battery. As the voltage drops then, the battery condition has deteriorated.

Battery Voltage and the State of Charge:

 

12.66v . . . . . . . . . . 100%

12.45v . . . . . . . . . . 75%

12.24v . . . . . . . . . . 50%

12.06v . . . . . . . . . . 25%

11.89v . . . . . . . . . . 0%

Multimeter-Battery Testing

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Disclaimer:
Due to factors beyond the control of ChrisFix or Eric Roberts, I cannot guarantee against the improper use or illegal modifications of this information. ChrisFix assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your risk. ChrisFix recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of ChrisFix, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not ChrisFix.

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