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  1. #1

    Cool Alfa 159 2.4 jtdm - parasitic drain on battery

    Hi - This is the first time I've ever experienced this - there is a parasitic drain on my cars battery, and I don't know what's causing it. I switched off the radio and done a few checks - is there a come fault that causes this as its not my cars battery, had that checked and changed. When I leave the car over-night, in the morning the battery will be flat if I do not charge it .. any ideas, is it a common fault?
    I would really welcome any insight as to what is causing this.. any help or guidance appreciated

  2. #2
    SportsAlfa.com Moderator lisknik's Avatar
    Join Date
    Jul 2013
    Posts
    5422
    I think you do have a fault there somewhere, I can leave my 159 for days and she always fires up, unlike my 156 which drains her battery in 3 days. My 33 is the best I can leave that weeks, no drain at all...but then again no alarm or anything!!

  3. #3
    Welcome. Are you sure it's not just the battery on its way out?

    It could be the alternator. Tun the car, put a bolt meter on the battery terminals and you should get a reading of 14.4v.

    If it's below14v it's your alternator.

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