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

Multimeter-Battery Testing

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:
As a result, due to factors beyond the control of Chris Fix or Eric Roberts. Hence, I cannot guarantee against the improper use or illegal modifications of this information. Consequently, Chris Fix assumes no liability for property damage or injury incurred. So, as a result of any of the information contained in this video. Of course you can use this information at your risk. Chris Fix recommends safe practices when working on vehicles.Subsequently, with tools seen or implied in this video. Naturally, due to factors beyond the control of Chris Fix. Hence, no information contained in this video shall create any expressed. Including, implied warranty or guarantee of any particular result. So, any injury, damage, or loss that may result from improper use. As a result, of these tools, equipment, or from the information contained in this video. Lastly, is the sole responsibility of the user and not Chris Fix.

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