Antique Auto Battery - Sealed or Maintenence Free?

Discussion in 'Original Drivetrain Topic' started by Budz, Apr 9, 2020.

  1. Budz

    Budz Veteran Member Lifetime Gold Member

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    Excuse the dirt...I've been driving it instead of showing the last few years... :lush::bowtie::bowtie:

    I haven't looked inside this battery in years, but recently it's become slow cranking so I took a look. What's going on here? The outer end cells appear to be refillable, while the center cells appear to have a smaller 'case' inside.

    Do you think I can refill the ends and charge it up, or is this a smaller 'sealed' battery enclosed inside the repro case?

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    Last edited: Apr 9, 2020
  2. DB Z28

    DB Z28 Veteran Member

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    Fill it up with distilled water put a charge on it and give it a try nothing to lose
     
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  3. roeville

    roeville Veteran Member

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    Buddy, I read that a lot of these batteries were made with small AGM batteries inside the reproduction case.

    Mike
     
  4. l16pilot

    l16pilot Veteran Member Lifetime Gold Member

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    ^^^ what Mike says. The Antique Auto reproduction batteries are only a molded outside case housing a smaller AGM battery. Filling the outer two caps will just fill the reproduction battery case and have nothing to do with replenishing the actual battery. What you see inside the middle four caps is just the top of the AGM battery.

    If your battery is getting weak, you can cut open the case and replace the AGM...but please do not fill the outer caps with water.
     
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  5. Budz

    Budz Veteran Member Lifetime Gold Member

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    Thanks Mike, that's what it looks like.
     
  6. Budz

    Budz Veteran Member Lifetime Gold Member

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    Got it, thanks. I guess I'm lucky it's lasted almost 10 years........
     
  7. Jim Streib

    Jim Streib https://www.flickr.com/photos/121766713@N04/albums

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    A buddy of mine gave me his old reproduction battery and cut it apart a week or so ago.

    From what I can tell, what was in this one is an Odyssey battery and going off of part numbers still on it could not find an exact replacement match.

    I still need to take measurements of the battery that was inside the case but if they still make a battery in that size, then one might be able to swap the guts out.

    https://www.flickr.com/photos/121766713@N04/albums/72157713739408676

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    While the below may not be a correct replacement, I will know more once I get measurements off of the internal battery I removed. Chances are it is an AGM non-spillable battery BUT it should never be used in an enclosed area like in a trunk as they still can vent explosive and corrosive fumes.

    [​IMG]

    Jim
     
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  8. Budz

    Budz Veteran Member Lifetime Gold Member

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    ^^^ Thanks for the info and link
     
  9. 70 SS/L78

    70 SS/L78 Veteran Member Lifetime Gold Member

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    AGM batteries cost more but they have more benefits. Longer life, not affected by cold temperatures as much, you can mount them sideways and tend to be more compact with same power output.
     
  10. fmarullo

    fmarullo Veteran Member

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    Did you ever find a battery that will fit inside the vintage case?
     

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