Group 24 vs 27 battery (1 Viewer)

[91Cruizer]

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.

 

[70sguy]

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.

 

[Sparky97LX]

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

 

[Tools R Us]

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.

 

[91Cruizer]

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.

 

[UCBerzerkeley]

I plan on grabbing one of the Group 31M Sears Platinum batteries (rebadged Odyssey batts) seen here

https://forum.ih8mud.com/80-series-tech/287241-install-success-sears-diehard-platinum-group-31m.html

 

[e9999]

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