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Why does battery die when car is idle?

Updated: 10/22/2022
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14y ago

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Something causes a slow drain on your battery. As it does, your battery slowly discharges. If you know that your car will be not used for several months, you might try disconnecting on of the battery terminals.

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Q: Why does battery die when car is idle?
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Why does my car battery die when in gear or when my feet are on brakes?

Sounds like to low an idle speed.


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Not likely but possible.


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We cleaned the battery terminal and now the car will not idle properly?

Cleaning the battery terminals had nothing to do with the engine not idling properly. Just a coincidence.


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Will a bad battery cause your car to lose power at higher rpm will it idle low at a stop?

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