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Effects of Incorrect Polarity When Connecting an Auto Battery

This will usually result in severe damage to all electronic components in the vehicle's electrical system, and could result in melting the insulation on much of the wiring, and even melting of some of the wires.

In a "worst case" scenario, it could even cause an electrical system fire which could result in burning up the entire vehicle.

And, although I've never seen it, I have heard "stories" that connecting an auto battery "backwards" resulted in the battery exploding.

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Q: What could happen if you hook a car battery up the wrong way?
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