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Thread: Battery Light

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    Regular Member DeeBe's Avatar
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    Default Battery Light

    Hello. As per the title, was driving about 20mins ago, and the battery light came on. I assume the battery has chucked it. The little health window says green, but the date on it is 19/08/06 (the cars 'new' date) so I would hazard a guess it's dead!

    Any input on this, or if anyone knows what type of battery I need?

    Much thanks! Dave.

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    mine done the same mate its the alternator im sure
    someone else will be along soon to confirm

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    Regular Member BigWilko's Avatar
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    Quote Originally Posted by DeeBe View Post
    Hello. As per the title, was driving about 20mins ago, and the battery light came on. I assume the battery has chucked it. The little health window says green, but the date on it is 19/08/06 (the cars 'new' date) so I would hazard a guess it's dead!

    Any input on this, or if anyone knows what type of battery I need?

    Much thanks! Dave.
    Worth spending a few quid and getting the alternator checked too. I went to ATS and they told me the battery was fine but the alternator was gone. Point to note: it the alternator goes whilst your driving it's carnage! Even the PAS goes. It's hard work steering without it

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    Full Member GazVXLINE170's Avatar
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    Default

    Could be the alternator though. Sounds like the battery but eliminate other possiblities before goping and spending £70 on a new battery. With a mulitmeter, check the battery voltage:

    - When engine is off - this should read 12V.

    - During engine starting - this should read about ~14.8V - if less alternator is probably about to pack in.

    - When running - should read ~14.3V if less alternator is probably about to pack in.

    My alternator went with no warning apart from the power steering going.
    Insignia VX-Line Nav CDTI 170.

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    Regular Member Critch's Avatar
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    If it came on whilst driving of suspect the alternator.

    If you have multimeter
    Check battery voltage
    Check batt voltage whilst cranking
    Check voltage with engine running
    Check again under load ( headlights on, radio, fan, rear screen demister etc)

    Should expect 12.2v ish from Batt
    Shouldn't drop below 10v on cranking
    Should expect 14.4v ish with engine running
    And about 13.9v ish with load

    By is I mean give or take .2v and it SHOULD be ok.

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    Regular Member Chuff's Avatar
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    i got 25 miles with the light on, at night.

    started up ok the following morning, 10 miles later i started losing everything.

    heaters, windows, pas, abs, dash lights, then engine

    recon alternator fitted soon after

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    Regular Member DeeBe's Avatar
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    I'll be off to get both cecked and probably both replaced then. Great. Brings the total for my 6 months of ownership to £880 shelled out...

    Methinks a Vectra may be getting traded-in!

    Dave

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    Regular Member Chuff's Avatar
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    i did £1200 in the first 4 days

    and am now in for 2k

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    Regular Member Critch's Avatar
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    Quote Originally Posted by Chuff View Post
    i did £1200 in the first 4 days

    and am now in for 2k
    Pretty much same as me.

    Except I bought mine with head gasket failed

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    Bit of side info, on most cars (unsure if its the same on vecs, guessing it's similar) the battery light doesn't actually refer to the battery itself, rather the charging system, and simply means that the battery is not being charged, which usually means an alternator fault.

    It probably wouldn't tell you whether the batteries knackered, since this requires a specific piece of kit (even a multi meter won't tell you if a battery is knackered). Even if a battery is worn out, you can still charge it, it just won't necessarily hold that charge very well once the engine is switched off. That being said, if the battery gets to the state of being completely discharged, it loses a fair bit of its capacity

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