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Thread: Vectra C battery replacement problem

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    confused Vectra C battery replacement problem

    Hi, hoping someone can help. I have had the battery off the car for about a week and now when trying to reconnect it the main fuse blew. Everything powers up even though it is all switched off. The ignition lights aren't working and the engine won't turn over. I've disconnected the horn to stop it blowing but I can't trace the fault. Here's hoping someone has an idea what is going on with it! Cheers.

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    Regular Member Critch's Avatar
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    Vehicle : Mk1 renault scenic... I know I know but it drives

    Trim : Basic

    Engine : 1.6 16v

    Year : 2003

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    Battery connected correct way?

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    Are you connecting the + terminal first?

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    Thanks for your replies. That's yes and yes. I'm wondering if the battery has changed its polarity having been completely flat?

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    Regular Member TonyP2020's Avatar
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    Vehicle : Meriva B

    Trim : SE

    Engine : 1.7CDTi

    Year : 2011

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    I know button battries can change polarity, but car ones??
    Its easy to check if you access to a multimeter.

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    Checked and have reverse polarity. Can I just drain it down and recharge again or would you suggest a new battery?

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    lucky mate the lorrys we work on if you reverse the polarity it blows the resister in the ecu meaning £4500 to replace + labour,
    to answer your question if its drained that low its prob worth just bite the bullet and get a new battery tbh

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