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Why does your battery smoke when you turn the key?

Updated: 8/20/2019
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12y ago

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The battery should not smoke when the key is turned; it should not do anything other than deliver electrical current. If the battery "smokes", the cause for this would be an excessive electrical current conducting through either a substance on the surface of the battery or the electrolytic solution inside, which would result from a malfunction of the battery (such as a cracked or broken area or a manufacturing error, etc.). In either situation, the excessive current throught the substance heats and burns the substance, and you then would see the burned vapor as the "smoking" action.

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12y ago
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Q: Why does your battery smoke when you turn the key?
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