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03-13-2015, 01:19 PM
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#1
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Canadian Member
Join Date: Feb 2012
Location: Eastern GTA, Ontario, Canada
Posts: 6,235
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Recommended 12V Battery Brands
I'll be picking up a new-to-me TT soon and the dealer will include an Interstate battery. Although I don't dry camp, I have had an occasion where the CG power went out late afternoon and we drained the battery in one night just using the interior lights and the fridge. So I'm thinking about upgrading to a better quality deep cycle battery. I know that Trojan is highly recommended but for my purpose it's probably overkill. Certainly very expensive.
So I'm looking for recommendations on a decent brand 12V deep cycle battery and the size and Amp-Hours rating I should consider. I can get US Battery and DEKA (East Penn) brand batteries fairly local.
Switching to LED bulbs is in the future but probably not this year.
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2023 Rockwood Signature 8262RBS
2016 Ford F-250 XLT SuperCrew, 6.2L, 4x4, 6'9" bed
2019 Rockwood Signature 8290BS (2019 - 2022)
2011 Rockwood Signature 8293SS (2015 - 2018)
2010 Rockwood Roo 23SS (2012 - 2014)
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03-13-2015, 02:59 PM
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#2
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Senior Member
Join Date: Apr 2011
Location: Splendora, Texas
Posts: 1,314
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While the interstate battery in not a Trojan, they are good. It just may be time to replace the interstate? How old is it?
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03-13-2015, 03:08 PM
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#3
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Senior Member
Join Date: Nov 2010
Location: Arlington, Texas
Posts: 469
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I started running Deka in all of my Harleys. They do extremely well for us. I think that they make a good battery. I run 2 group 27 battery's in my Cardinal. I have a residential style fridge with an 2000 what inverter.
Jester
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2012 Super Crew 4WD 6.7 PSD
2015 Cardinal 3800 FL
2007 Road King Black Cherry-Hers
2007 Road King Blue-Mine
1979 FXS Hot Rod Shovelhead
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03-13-2015, 03:38 PM
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#4
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Canadian Member
Join Date: Feb 2012
Location: Eastern GTA, Ontario, Canada
Posts: 6,235
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Quote:
Originally Posted by whj77372
While the interstate battery in not a Trojan, they are good. It just may be time to replace the interstate? How old is it?
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Dealer will supply a brand new Interstate battery. If I want to use something a little better I'll have to try to negotiate a store credit for the value of the Interstate battery.
The Interstate battery is actually a dual purpose (deep cycle/starting) battery and they don't list a 20 Hour rating.
From the info on their websites (20 Hr ratings):
DEKA DC27, 90 Amp-hrs
US Battery US 27DC XC2, 105 Amp-hrs
Trojan 27TMX, 105 Amp-hrs
Interstate SRM-27, 96 Amp-hrs (est. from Trojan literature)
Canadian Tire Nautilus 27 (Exide?), 100 Amp-hrs
__________________
2023 Rockwood Signature 8262RBS
2016 Ford F-250 XLT SuperCrew, 6.2L, 4x4, 6'9" bed
2019 Rockwood Signature 8290BS (2019 - 2022)
2011 Rockwood Signature 8293SS (2015 - 2018)
2010 Rockwood Roo 23SS (2012 - 2014)
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03-13-2015, 03:43 PM
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#5
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Senior Member
Join Date: May 2014
Location: Waterloo Region
Posts: 729
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I had dual large Interstate marine/RV deep cycle batteries on my previous TT. No complaints at all - still good after 9 years. I always took them out and put them on a smart-charger in the unheated garage during the winter, almost always being floated by the RV power center otherwise.
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2015 Rockwood Signature UltraLite 8282WS Platinum, GY Marathon LRD, TST 507RV TPMS
2005 GMC 2500HD CCSB D/A, Curt E16, Prodigy P2, Garmin RV760LMT w/BC-20 b/u cam
 Self restraint is for the young. I'm old and want it NOW!
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03-13-2015, 03:49 PM
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#6
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Phat Phrog Stunt Team
Join Date: Aug 2011
Location: Iowa
Posts: 34,507
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Two srm24 interstate ' s so far so good "4 years"
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03-14-2015, 12:03 PM
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#7
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2016 Avenger 26BH
Join Date: Apr 2013
Posts: 65
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The key here may be the fact that the fridge is using 12V power. Was it for cooling or just for the electronics portion? I have never run a fridge on 12V for cooling, always 110V or propane but I suspect cooling with 12V is a major drain? I have sold EastPenn for the last 6-7 years now with no major issues/comebacks. Perhaps it won't matter what battery is there, if the fridge is cooling with 12V the useful life could be relatively short between charge cycles? IMO. Keep in mind I have been wrong a time or two.
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03-14-2015, 02:14 PM
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#8
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Member
Join Date: Sep 2013
Posts: 55
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Definitely want to run the fridge on gas if not on shore power.
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03-14-2015, 03:46 PM
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#9
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Junior Member
Join Date: Dec 2014
Location: Utah
Posts: 17
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Costco now sells Interstate deep cycle RV/Marine batteries. Available in store. Better price than most other sources.
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03-14-2015, 03:51 PM
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#10
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Member
Join Date: May 2013
Posts: 30
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I have been buying Costco batteries since the store opened in Windsor. Their batteries are made by Interstate which is owned by Johnson Controls, one of the largest battery producers in the world. Costco has the best warranty in the business, hands down. If your battery loses its "oomph" over a couple of years, you carry it in and they give you your money back. I think over 3 years it is pro-rated but check first as I am not certain. Also take an old battery of any brand with you to the store to offset the $10 core charge on the new battery you buy. Can't go wrong with Costco.
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03-14-2015, 05:08 PM
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#11
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Canadian Member
Join Date: Feb 2012
Location: Eastern GTA, Ontario, Canada
Posts: 6,235
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Cleon and rznaz, on the evening we drained the battery the fridge was on propane (it won't run exclusively on 12V), but it does use 12V to operate the control board.
Does Costco in Canada sell deep cycle batteries? I still have a bunch of Canadian Tire gift cards from Christmas...does anyone have experience with their Exide-made Nautilus batteries?
__________________
2023 Rockwood Signature 8262RBS
2016 Ford F-250 XLT SuperCrew, 6.2L, 4x4, 6'9" bed
2019 Rockwood Signature 8290BS (2019 - 2022)
2011 Rockwood Signature 8293SS (2015 - 2018)
2010 Rockwood Roo 23SS (2012 - 2014)
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03-14-2015, 05:13 PM
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#12
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Mod free 5er
Join Date: Mar 2008
Location: Concord, NC
Posts: 24,702
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When I replace the batteries, I get a pair of the cheapest Walmart sealed batteries.
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03-14-2015, 05:35 PM
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#13
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Senior Member
Join Date: Feb 2012
Location: Clarksville Va.
Posts: 10,422
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Quote:
Originally Posted by OldCoot
When I replace the batteries, I get a pair of the cheapest Walmart sealed batteries.
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That's why you keep replacing them.. 
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Coachmen M/H
Concord
2018 / 300 DSC
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03-14-2015, 05:40 PM
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#14
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Senior Member
Join Date: Feb 2014
Location: Ontario
Posts: 1,177
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Quote:
Originally Posted by itat
Cleon and rznaz, on the evening we drained the battery the fridge was on propane (it won't run exclusively on 12V), but it does use 12V to operate the control board.
Does Costco in Canada sell deep cycle batteries? I still have a bunch of Canadian Tire gift cards from Christmas...does anyone have experience with their Exide-made Nautilus batteries?
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Good batteries and if you have gift cards all the better 
__________________
2014 Forester 3051s
2016 Nissan Pathfinder SL
2012 Sonic toad
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03-14-2015, 06:01 PM
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#15
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Senior Member
Join Date: Oct 2014
Posts: 981
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We got some re branded gr 24 with our 315. Its sticker says "Mason".Sticker isnt even on strait,its at about a 20* angle. Cant find any reference to them anywhere. Wasnt that thoughtful of them? I'm going to build a new aluminum bat box like I did for the Merhow except for 2 gr 27's.
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03-14-2015, 06:09 PM
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#16
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Mod free 5er
Join Date: Mar 2008
Location: Concord, NC
Posts: 24,702
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Quote:
Originally Posted by gljurczyk
That's why you keep replacing them.. |
Haven't had to yet, only when I got the trailers new. Dealer didn't put matched batteries in so I just replaced both of them and used the dealer batteries on other things.
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03-14-2015, 06:37 PM
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#17
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Member
Join Date: May 2013
Posts: 30
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Costco in Canada definitely sells the deep cycle batteries used in RVs, boats, TTs, etc. I bought 4 of them for my Class A RV.
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03-14-2015, 07:57 PM
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#18
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Senior Member
Join Date: Oct 2014
Posts: 981
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Quote:
Originally Posted by gljurczyk
That's why you keep replacing them.. |
All I buy is wally batteries, mosrly because I'm never more than a few miles from a wally if I do need warranty.That being said,Ive never had one fail that was the batterys fault. The 2 in my SD 7.3 are 6 yrs old,the truck is never garaged, and it started all winter just fine down to -20. The wifes grand cherroke has a 5 yr old one,same story.That is what I will be putting in the 315 this spring,going to ditch that no brand Mason it came with.
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03-14-2015, 08:32 PM
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#19
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Senior Member
Join Date: Oct 2009
Location: Picton
Posts: 714
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I wholeheartedly recommend the Costco batteries. Got 2 x 6v and gave been babying them for close to 4 years. Still like new.
Back then Costco did not carry them in Canada, hit them in Myrtle Beach, $74 each.
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Denis & Diane
* Happy Campers *
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03-14-2015, 08:46 PM
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#20
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Moderator Emeritus
Join Date: Mar 2008
Location: St. Paul, Minnesota
Posts: 3,368
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I don't think you want a "dual purpose" battery regardless of the brand.
I've had good luck with NAPA deep cycle batteries.
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2012 BMW G650GS, Demco Premiere Slider
1969 John Deere 1020, 1940 Ford 9N, 1948 Ford 8N
Jonsered 535, Can of WD-40, Duct Tape
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