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Old 12-06-2008, 04:40 PM   #1
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1984 31' Excella
Abernathy , Texas
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Change From Group 24 to 27?

I currently have 2 Group 24 batteries on my 84 31' Excella that are nearly 6 years old, and on their last leg. When I bought these was right after I purchased the trailer, and I just put back the size that was already there. I didn't know to even consider the size change.

It appears I have room in the boxes to go up to Group 27 batteries from the Group 24 size.

Is there ANY reason not to buy the bigger battery?

Thanks in advance for the input.

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Old 12-06-2008, 04:50 PM   #2
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No reason if they will fit. Sometimes bang for the buck is a concern. I've seen some brands group 31s only 5 more amp hours then the 27s yet the price jump is significant.

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Old 12-06-2008, 06:36 PM   #3
Site Team
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I think you need to price them. At Sam's Club the Group 27 are slightly more expensive then the Group 24. The difference is about $10 per battery, for a 10ah difference in capacity.

At $1.00 per amp-hr you could stay with the smaller ones if total capacity isn't an issue.
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Old 12-06-2008, 07:42 PM   #4
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St Cloud , Minnesota
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I switched to the smaller batteries in my Sovereign a couple of years ago. It makes it a lot easier to take them out for the winter and put them back in when spring rolls around.
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Old 12-06-2008, 07:43 PM   #5
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Union , Oregon
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I sized my battery box to hold two group 27's and promptly put a spacer in and filled it with two group 24's. I didn't want to lift or carry the extra weight. Arthritis makes every pound count. I haven't missed the extra capacity yet.
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Old 12-06-2008, 10:14 PM   #6
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2004 25' Safari
. , Illinois
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Anyone know offhand if I can fit grp 27s in the factory 2004 battery box in the "A" frame?

Since letting mine die outright a few times, this spring, I have to replace them, and since I boondock a lot more than I have electric hookups, if I can get a bit more juice with the 27s (and they would fit in the factory box), I'd go that route, since upgrading to the 3 stage charging eliminates the cooking issues.
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Old 12-13-2008, 12:07 PM   #7
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1984 31' Excella
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I went with the group 27s yesterday.
Price difference was $6 a battery over the 24s.
The weight difference isn't that much.
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Old 12-13-2008, 12:29 PM   #8
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I have to change my previous posting. I also just bought two group 27s at Sams Club an hour ago. When I rechecked the prices they weren't $10 difference, more like the $6 you noted. Also, when you factor in the core charge, the price difference is neglible.
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Old 12-13-2008, 12:40 PM   #9
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Trotwood , Ohio
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I changed batteries this past spring. The PO let them discharge /freeze and bust. I replace them with Group 27 Marine from AUTOZONE. I don't off hand recall the price. I just replaced the Grp 27's that were there.We ran them this season without a problem. Grp 27's just fit in the boxes of the Overlander.

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