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Old 11-05-2015, 04:02 PM   #1
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2011 25' FB Flying Cloud
Columbus , Indiana
Join Date: Feb 2011
Posts: 44
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New batteries

I have a 2011 Flying Cloud FB.
I winterized two weeks ago and put the batteries in the garage as usual.
My routine has been to charge once a week and this has always worked.
This time, however; I noticed that the batteries are not charging. I also noticed on our last trip that the converter cooling fans were cycling more often than usual.
I think that my batteries have pooped out on me. As batteries go though, five years is OK, right?
Anyways, I'm resigned to replacing my (2) Interstate SRM24 550 CCA 690 MCA batteries.
Should I replace with this model battery or is there some great new battery on the market that I should consider?

Bill & Martha
2011 25 Flying Cloud #525456
2010 F150 Lariat SCAB, 5.4L, 3.55:1
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Old 11-05-2015, 05:17 PM   #2
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2014 25' Flying Cloud
Box Elder , South Dakota
Join Date: Feb 2014
Posts: 1,070
It really depends on how you use your trailer. If you spend more time at places with full hookups. I'd get the cheapest RV/Marine battery I could find.

If you are a die hard boondocker you'd be better served by some 6 volt golf cart batteries.

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Old 11-05-2015, 05:24 PM   #3
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2006 23' Safari SE
Biloxi , Mississippi
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I went with a pair of 6volt Trojans and a PD three stage converter. So far a good reliable combination.
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Old 11-05-2015, 06:16 PM   #4

2003 25' Classic
Zanadude Nebula , WNY
Join Date: Jun 2007
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.........and if your Trojan fails.

I like my 12v grp 27 Lifeline 100ah AGM's.

But whatever you do, CCA means nothing when spec'ing an RV application,
AH rating much more relevant.

AF #1

"Sticks & stones can break your bones...and hail will dent your Airstream"

So when is this..."old enough to know better" supposed to kick in?
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Old 11-05-2015, 06:16 PM   #5
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2015 16' Sport
ottawa (greely) , Ontario
Join Date: Feb 2012
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The interstate batteries that came with your airstream are poor batteries #1 any battery that shows on the label cold cranking amps ( cca) means it's not a real deep cycle battery, like others have said if your always hooked up to hydro just get some cheap batteries ,but if your boondocking a lot ,you should invest in some real deep cycle batteries such as (sunxtender agm ) trojan lead acid, crown lead acid , deka lead acid ,lifeline agm, batteries, your choice as a pair of 6volt or 12 volt. Depends on your amp hour requirement.
Remember if you spend big bucks on good real deep cycle batteries you should invest in a good 3 stage charger with equalizing feature .
2012 silverado ext cab 4x4 ,5.3 L , 6 speed trans,3:42 final drive,tow package standard box 6 1/2 foot . 2014 honda forza 300 scooter, #2 2015 honda crf 250 L (Dual sport)
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Old 11-06-2015, 09:08 AM   #6
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2014 30' Classic
2015 23' International
2013 25' FB International
Apache Junction , Arizona
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A 300 amp-hour lithium iron phosphate battery is 11" x 14" and weighs about 84 pounds or less than the two factory installed lead acid batteries. It does require a more sophisticated charger system and can provide about 85% of it's rated amp hours.

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