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What will drain a car battery down?

Updated: 10/20/2022
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12y ago

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In addition to acutally driving the car, using the little features such as the lights, horn, radio, and air conditioning/heating will drain the battery of a car. Also a dead cell in the battery will cause it to run down overnight. And if something is on such as a dome light, under hood light, trunk or glove box light. A stuck relay will also run the battery down.

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12y ago
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Q: What will drain a car battery down?
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