How much voltage is a car battery?

My goal is to learn more about cars and car repairs, so I can DIY simpler projects. First up, I need to change my car’s battery. Out of curiosity, how many volts is a car battery?

I think it’s very cool that you’re trying to learn everything you can about your car and DIY simple car repairs. Replacing your battery is a great place to start!
A typical car battery will show a reading of 12.2 to 12.6 volts when fully charged. If the engine is running, you’re likely to see readings of 13 to 14 volts.
If you want to test this out yourself, you can measure the voltage of your car battery with a multimeter. This tool can be purchased at an auto parts shop or online.
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Chloe Jenkins
Answered on Nov 16, 2021

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