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How many volts should batteries have?

Updated: 10/22/2022
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13y ago

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Fully charged battery should have 12.6 volts. 75% charged 12.4 volts, 50% charged 12.2 volts, & 25% charged 12.0 volts.

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Q: How many volts should batteries have?
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HOW MANY VOLTS ARE IN THE BATTERIES WE HAVE USED?

The small batteries (dry cells) used for many electronic devices usually have approximately 1.5 volts. Car batteries (which have several cells working in series) usually have around 12 volts. Other batteries may have other voltages.


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Why do two 12-volt batteries hooked up measure more than 12 volts?

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