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  1. #1
    Neutral

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    Can sombdy make me a favour?test his battery to compare?

    I changed my battery (bosch 72ah or 74 ah i think it was) yesterday through garranty ,it lasted 4 months...
    however i started my engine today 2.0 tdi and i measure 14.3 - 14.4 which is great!but ... when i switched on the heat plus the lights (xenon) i saw 13.6. Is this ok?Can somebody check his car if has similar numbers? thx in advance

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  3. #2
    Fossie

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    That is ok and perfectly normal. Bear in mind that these are 12 volt batteries so provided you don't get a volt drop below that when the engine is running you will be fine.

  4. #3
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    I'd get the alternator checked out just to be on the safe side, doesn't matter how good or big the battery is if it isn't getting a good charge.

    You should be getting close to 14.4-14.8v no load & ideally no less than 14.0v

    12.6v fully charged, engine off - anything below 12.0v you are looking at a dying battery

 

 

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