Group 24 vs 27 battery

Discussion in '80-Series Tech' started by 91Cruizer, Aug 27, 2009.

  1. 91Cruizer

    91Cruizer

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    Hey, my Duralast group 27 battery was dying so I replaced it with a Costco battery. The thing is that Costco recomends a group 24 size battery which is smaller. The CCA is still well above the OE battery but will life be shorter since it is under more strain? Either way $50 for a 3 year free replacement battery isn't bad. Sounds MUCH better than the old battery. Anyone else think its ridiculous how much battery mark up is? Johnson controls makes like 90% of all car batterys. ALL employees get optimas for $50 and others for next to nothing. The only time I wish I still worked for them is when I buy a battery. Whoa a little off topic there.
     
    Last edited: Aug 27, 2009
  2. 70sguy

    70sguy

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    All things being equal I would still opt for the group 27 since it fits the tray and hardware perfectly.
    No putting risers under, or much room for flopping side to side.
     
  3. Sparky97LX

    Sparky97LX

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    When it comes to batteries, I've never had too much battery but I have had too little.!
     
  4. Tools R Us

    Tools R Us

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    It depends on your needs, added loads. My rig came with a small standard Interstate (group 34, 500cca?). It worked well until it died, checked the date code, it lasted 7 years, great life for AZ heat. Replaced it with a 27F Interstate Megatron.
     
  5. 91Cruizer

    91Cruizer

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    Well I guess it will be fine. Just curious. I am basically stock as far as load goes with the exception of 2 off road lights. No winching or anything goes on. I do more desert trips than hardcore rock stuff.
     
  6. UCBerzerkeley

    UCBerzerkeley

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  7. e9999

    e9999 You want to do what...? Moderator

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    I put in a deep cycle 27 from Costco, but it's a 27DC, with the poles reversed. Good deal for the capacity.
     

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