Forum Discussion

Campinfan's avatar
Campinfan
Explorer III
Aug 16, 2023

Battery Size (replacing)

I need to replace my RV battery. It is a 24DC model. I know that does not mean 24 volts DC. I see a 24DC battery I can get but there is also a 27DC that has more MCA (not sure what that means but I am used to CCA--cold cranking amps) So my question is, can I replace it with the bigger battery and if so, is it worth it to get the additional 60 MCA for $4 more? Just not sure if I HAVE to use the same size or is that just the minimum one the manufacturer uses to save a couple bucks.
Seeking Advice
  • Grit_dog's avatar
    Grit_dog
    Navigator
    Aug 16, 2023
    Buy the biggest battery(s) you can cram in there if you want more capacity. Not difficult to measure your battery compartment and then compare to the published dimensions of different batteries.
  • enblethen's avatar
    enblethen
    Nomad
    Aug 16, 2023
    Group 27 has a little more capacity then a Group 24
    Battery size depends on what style of camping you do. If just overnighting, a Group 24 will do. Couple of days then a Group 27. Longer periods you may want to switch to two 6-volt golf cart batteries.
    It all depends on you on which is best!

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