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What charges the car's battery?

Updated: 10/21/2022
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Wiki User

13y ago

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The battery is constantly being charged by the alternator as long as the engine is running. The alternator is driven by a fan belt or serpentine belt and provides a consistent steady flow of direct current of around 14 or 15 volts. The amount of voltage is kept steady even at varying engine revolutions by a voltage regulator.

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Wiki User

13y ago
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Roy Walker

Lvl 4
2y ago

The battery is charged by an alternator on modern cars, or by a dynamo on earlier ones.

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Wiki User

11y ago

The alternator charges the car battery.

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Janice Jefferson

Lvl 2
4y ago

Will the alternator kill your battery

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The alternator is part of the electrical system. It is what charges the battery and keeps it charged.


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