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Correct battery for 400i?

Discussion in '365 GT4 2+2/400/412' started by aleventhal, Jun 2, 2007.

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  1. aleventhal

    aleventhal Formula Junior

    Jan 11, 2005
    661
    Sparks, MD
    Full Name:
    Alexander Leventhal
    #1 aleventhal, Jun 2, 2007
    I need a new battery for my 400i (#049773 - a late Series II). Unfortunately, a stupid PO replaced the original with an undersized replacement, and I now have no way to know what the correct make/model/size/model # would be for Interstate, NAPA, etc. common battery. Can anyone tell me what is correct or what they are using with good results? I would really appreciate it.

    Thanks,

    Alex
     
  2. dstacy

    dstacy F1 World Champ
    Owner Rossa Subscribed

    Jan 23, 2006
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    Dave
    #2 dstacy, Jun 2, 2007
    Sure A.
    I drove mine today. Give me me a few minutes.
     
  3. dstacy

    dstacy F1 World Champ
    Owner Rossa Subscribed

    Jan 23, 2006
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    #3 dstacy, Jun 2, 2007
    Its a group 27F Alex.

    Easy to get.
     
  4. aleventhal

    aleventhal Formula Junior

    Jan 11, 2005
    661
    Sparks, MD
    Full Name:
    Alexander Leventhal
    #4 aleventhal, Jun 2, 2007
    Thanks, Dave. All well?

    Alex
     
  5. dstacy

    dstacy F1 World Champ
    Owner Rossa Subscribed

    Jan 23, 2006
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    #5 dstacy, Jun 3, 2007
    Yes, thank you.
    Sorry I had to cut our conversation short the other day.
     
  6. bergxu

    bergxu Formula 3

    Aug 16, 2005
    1,307
    OnTheSerpentMound
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    Aaron
    #6 bergxu, Jun 4, 2007
    Hmph, I just stuck an Interstate group 48 in my 400i...
     
  7. aleventhal

    aleventhal Formula Junior

    Jan 11, 2005
    661
    Sparks, MD
    Full Name:
    Alexander Leventhal
    #7 aleventhal, Jun 4, 2007
    Did it fit? Anyone know what the difference is or which is better, bigger, or more correct?

    A
     
  8. bergxu

    bergxu Formula 3

    Aug 16, 2005
    1,307
    OnTheSerpentMound
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    Aaron
    #8 bergxu, Jun 4, 2007
    Alex,

    Yes, it fit perfectly. No idea if it's the 'correct' battery for the car but that was what came out of it, so I just followed suit. If anything, the 48 is a tad small, but not really noticeable.

    Cheers,
    Aaron
    '82 GTSi
    '83 400iA
     
  9. KraigG

    KraigG Formula 3

    May 25, 2006
    1,501
    Willow Springs
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    Kraig
    #9 KraigG, Jun 10, 2007
    My battery just died today. At a gas station. Next to a NAPA shop. I went over there, and bought a new Group 34 replacement, and it started right up. Fit in perfectly. Get the highest CCA you can find. Mine was a 625, which was the highest they had.
     
  10. aleventhal

    aleventhal Formula Junior

    Jan 11, 2005
    661
    Sparks, MD
    Full Name:
    Alexander Leventhal
    #10 aleventhal, Jun 11, 2007
    For what it is worth, I actually wound up going with an Optima Red Top, figuring the benefits outweighed the cost, and (at least according to the guy in the store) it does 1200 CCA, far more than a traditional lead acid battery. It is significantly smaller than the "correct" standard battery, but it clamps down just fine and is perfectly stable using the factory mounting brackets. Just in case anyone is ever looking to know if it will work w/o mods or not - it will.

    A
     
  11. KraigG

    KraigG Formula 3

    May 25, 2006
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    Willow Springs
    Full Name:
    Kraig
    #11 KraigG, Jun 12, 2007
    Found out why my battery was dead-BOTH alternators had died! They looked like the original Bosch, so they're both out for a rebuild now. I should have them both back in tomorrow!
     

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