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Thread: Dead battery?

  1. #1
    Join Date
    Jun 2005
    Location
    Sammamish, WA
    Posts
    14

    Default Dead battery?

    After sitting for 4 days, not enough charge to crank the engine. So I charged the battery overnight. Started the car this morning briefly and sat in the garage all day until after work at 5pm. Not enough charge again to crank the engine.

    Static current draw shows 30mA which is fine.

    I think this pretty much points to a bad battery. Alternator and other parts of the charging system don't seem to be involved. Conclusive? Anything else I should check?

    ** Update 9-17-05

    Replaced the battery and everything is back to working order. A couple of notes on engine computer reprogramming/relearning for those doing this in the future

    - Battery was disconnected for a few hours (taken to store to exchange for a new one). The first start after new battery was installed ran rough for just a few seconds. Then back to normal.

    - Wouldn't idle while in park even after 10 minutes of keeping the idle alive with my foot. Then I just started driving for about 5-10 minutes (idle doesn't die while in drive for whatever reason) and now everything is back to normal. Idles fine in park.
    Last edited by howardc64; 09-17-2005 at 08:09 PM.
    1992 BMW 535iA trying to become The Ultimate Driving Machine
    2001 Volvo V70 T5 ASR Our first Volvo. Wife says we are Volvo for Life
    Sammamish, WA


  2. #2
    Join Date
    Mar 2005
    Location
    Long Beach, CA
    Posts
    2,563

    Default

    Quote Originally Posted by howardc64
    After sitting for 4 days, not enough charge to crank the engine. So I charged the battery overnight. Started the car this morning briefly and sat in the garage all day until after work at 5pm. Not enough charge again to crank the engine.

    Static current draw shows 30mA which is fine.

    I think this pretty much points to a bad battery. Alternator and other parts of the charging system don't seem to be involved. Conclusive? Anything else I should check?
    How old is the battery?

    Ralph Mendoza Jr. - Long Beach, CA

  3. #3
    Join Date
    Jun 2005
    Location
    Sammamish, WA
    Posts
    14

    Default

    Quote Originally Posted by uscharalph
    How old is the battery?
    Not sure. Got the car used 3 months back. Have a lot of the service records but no indication of a battery change.

    The battery white and has no date or brand markings. Have no german words on it. It says manufactured by DBMC Winston Salem N.C. Would this be the original battery? I'd figure any aftermarket replacements have clear brand markings.
    1992 BMW 535iA trying to become The Ultimate Driving Machine
    2001 Volvo V70 T5 ASR Our first Volvo. Wife says we are Volvo for Life
    Sammamish, WA


  4. #4
    Join Date
    Mar 2005
    Location
    Long Beach, CA
    Posts
    2,563

    Default

    Quote Originally Posted by howardc64
    Not sure. Got the car used 3 months back. Have a lot of the service records but no indication of a battery change.

    The battery white and has no date or brand markings. Have no german words on it. It says manufactured by DBMC Winston Salem N.C. Would this be the original battery? I'd figure any aftermarket replacements have clear brand markings.
    Could just be a new battery is in order. I've been told the cars are pretty hard on batteries.

    Ralph Mendoza Jr. - Long Beach, CA

  5. #5
    Join Date
    May 2004
    Location
    Sydney, Australia
    Posts
    2,699

    Default

    its probably dead. i know the cca of my old oem battery was 740cca

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