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Old 10-14-2016, 09:23 PM   #1
2006 Georgetown 340
 
Join Date: Jul 2014
Location: Troy OH
Posts: 89
Can I use this battery?

I've read many of the threads on house batteries and which are the best replacements. On remaining question that I have is can I "upgrade" or substitute a different Group Size than what I have currently?

The previous owner installed a 27DC115 Crown Deep Cycle:
MCA - 845
20 AH Rate - 115
RC Minutes - 195

Can I replace with a different group from SamsClub
Duracell AGM Group 31
MCA - 800
20 AH Rate - 105
RC Minutes - 200

It seems like a lesser battery but wanted to get thoughts since this is an AGM battery vs. the non-AGM battery. Would I be losing power with a lesser MCA and lesser 20 AH Rate?

Thanks in advance!

Rich
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Old 10-14-2016, 09:46 PM   #2
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The Duracell battery is larger physically but has less power than the battery you have now. If you want to replace the battery you have, you should look for a true deep cycle battery not a combination starting/deep cycle. The MCA ( marine cranking amps) rating is not important for a house battery and some deep cycle batteries will not even have this rating.
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Old 10-15-2016, 02:44 AM   #3
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Location: Valdez, Alaska
Posts: 52
I know in our RV, we couldn't fit a 31 series battery. We had to stay with the 27 series. The 31 will fit into the bottom, it is too high to fit under the wiring on the frame rail.
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