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It may destroy the battery or it may just blow the main fuse or it may do other damage. No way of knowing for sure what will happen.

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Q: What can happen if you connect battery terminals positive to negative and negative to positive to a 1999 Honda odssey?
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What can happen if you connect battery terminals positive to negative and negative to positive to a 1995 Maxima?

On any car, switching the battery hookups will most likely fry your battery.


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When a battery has two positive and two negative terminals is it ok to connect one battery to a second battery using the second terminal?

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