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Thread: Question about the Battery Back-up alarm on the mk4s?

  
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    Question about the Battery Back-up alarm on the mk4s?

    As many know my coupe has been sitting in the garage since last july. i dragged it out today to clean it and put a new battery on it ready for when/if it sells.

    The battery back-alarm keeps cutting in when your driving it or when you are just cleaning the car. went into garage again 10 mins ago and its still going

    Will a good run sort it out to recharge the batteries or do i need to replace them??

    any ideas?
    Astra Thurlby T9 CDTI -200bhp 343lb torque

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    sometimes a good run will sort them out but most of the time that's your lot mate and then it's new siren time

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    the batterys themselves can be changed, rather than the whole siren, needs abit of soldering, but its a simple enough job, it works out to about £15 rather than the £66.70 that vauxhall charge for a new siren.
    The car will run fine without it, but your alarm is no longer the full cat 1 and it could void your insurance.

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    Nicad batteries for the siren are not sold anymore had a good look 5 years ago but if you know where you can get them from you can share that with the rest of us

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    Quote Originally Posted by Enigma ??? View Post
    Nicad batteries for the siren are not sold anymore had a good look 5 years ago but if you know where you can get them from you can share that with the rest of us
    i know, i cant find them anywhere. would a power sounder from a breakers yard be ok?
    Astra Thurlby T9 CDTI -200bhp 343lb torque

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    If it hasn't been charged then your back to square one and then again you don't know if it will even last a couple of days if you get it from scrap. No backsies

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    new units i think are closer to the £50 mark from Autovaux

    do u really trust getting a PS from a breakers??? some owners have reported that theirs die after a year - some last a few years more - not something id wanna risk personally

    alternatively just disconnect the PS - as said above - it "could" invalidate ur insurance tho - its what id do in the meantime thats for sure!!!

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    http://www.cellpacksolutions.com/Sea...?ID=3/V150H/4P
    http://www.batterytastic.co.uk/Searc...?ID=3/V150H/4P
    http://www.cpsbatteries.co.uk/3v150h...nge-p-125.html

    Theres 3 links to the batterys that you need, all 3 links mention astra alarms in the description, you'll need 2 batterys.

    if you struggle to find them in stock the 3/V150H Ni-MH Varta batterys will do you'll just have to solder the legs to the battery yourself

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