pianotuna
Regina, SK, Canada
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Joined: 12/18/2004
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Hi terrry120r,
Normally there is enough reserve capacity in newer converters to accommodate a greater number of amp-hours of storage.
I recommend folks get the greatest number of amp-hours of capacity that physically fit in their RV, whether it be a 12 volt, 6 volt or 2 volt format.
For more details surf here:
Technology
and click on "Battery Selection".
terryt120r wrote:So when you install two 6 volt batteries in series, does the built-in 12 volt charger still charge both batteries adequately??
Regards, Don
Kustom Koach Class C 28'5" 256 watts solar, 875 amp hours in two battery banks 12 volt batteries 2500 watt inverter.
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BurbMan
Long Island, NY
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Joined: 09/20/2001
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Calif, I'm on my second set of those batteries, you won't be disappointed. I noticed a significant increase in usable power over 2 group 24's I had before them. The advantage of the 6V is that they are true deep cycle, and can withstand repeated discharges better than their 12v counterparts.
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DeutscheMan
Oregon Coast
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Joined: 08/17/2003
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You are on the right track for sure. I use the identical batteries, only I'm using four instead of the original two. The two U2200's were great but when I added a sine wave inverter, I wanted more capacity. Your batteries should last anywhere from two to eight years depending on how you maintain them. The only issue I have with these particular batteries, is they only have a 6 month warranty. Generally the warranty is an indicator of what the manufacturer thinks of their product. Then again, the limited warranty may have something to do with these batteries being used a lot in industrial/commercial applications where they typically are subject to more than average abuse. Two 6volt are easily connected by "series".ie; connect a positive side of one, to the negative side of the other. You now have a 12v battery. Use the remaining positive pole for your positive wires to the trailer, and the remaining negative pole for the negative wires to the trailer.
Bill
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Deus Ex Machina
Central New Jersey
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Joined: 09/25/2009
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califRVers wrote:The Interstate 6v U2200 were $129 each, the Interstate Group 24 12v were $99 each, from all that I have heard and read it made sense to upgrade to the 2 6v and pay the additional $60, since we were buying new batteries anyway.
We bought them from our local RV service center..
Ouch! Is that in Canadian dollars?
I paid $75 each for my Interstate U2200 on my previous rig, and about $50 each for the group 24 trolling motor batteries on my present rig (the 6v ones are too heavy for my tongue).
NEVER, EVER, EVER buy batteries from an RV place! 
Paul
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DeutscheMan
Oregon Coast
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Deus Ex Machina wrote:califRVers wrote:The Interstate 6v U2200 were $129 each, the Interstate Group 24 12v were $99 each, from all that I have heard and read it made sense to upgrade to the 2 6v and pay the additional $60, since we were buying new batteries anyway.
We bought them from our local RV service center..
Ouch! Is that in Canadian dollars?
I paid $75 each for my Interstate U2200 on my previous rig, and about $50 each for the group 24 trolling motor batteries on my present rig (the 6v ones are too heavy for my tongue).
NEVER, EVER, EVER buy batteries from an RV place!
How many years ago was that? I paid $149. each for mine. Where did you find them for $75.00?
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Deus Ex Machina
Central New Jersey
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DeutscheMan wrote:Deus Ex Machina wrote:califRVers wrote:The Interstate 6v U2200 were $129 each, the Interstate Group 24 12v were $99 each, from all that I have heard and read it made sense to upgrade to the 2 6v and pay the additional $60, since we were buying new batteries anyway.
We bought them from our local RV service center..
Ouch! Is that in Canadian dollars?
I paid $75 each for my Interstate U2200 on my previous rig, and about $50 each for the group 24 trolling motor batteries on my present rig (the 6v ones are too heavy for my tongue).
NEVER, EVER, EVER buy batteries from an RV place!
How many years ago was that? I paid $149. each for mine. Where did you find them for $75.00?
About 4 years ago. Bought them from an Interstate dealer. 6v batteries are routinely bought for between $65 and $80 from places like Walmart, Costco, Sams Club, etc.
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DeutscheMan
Oregon Coast
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I bought mine from a local Interstate dealer too. Yow! Almost double in 4 years!
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huntram
Ventura, CA
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Joined: 12/26/2004
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Dealer cost on Interstate 6v U2200 is $90+ each (I have a friend who's a dealer). I don't remember excactly. I decided to go with the Sam's club at $71.95 each. I use 4 batteries. Haven't gone out yet to try them, but was using the U2500's so I will get less out of them.
I do less boondocking now and just got a small generator to recharge. That with my two solor panels i should be good to go..
Brian
2004.5 Dodge Ram 2500 Quad Cab 4-door CTD, Quadzilla ZXT, S&B intake, 5" SS exhaust tip, HP Laramie Package, 4X4 Graphite 2 tone, 4.10 Auto, Nasta Nerf bars, Arma Coating bedliner.
2005 ThorCA Jazz Travel trailer 2510TT.
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califRVers
Santa Rosa, California
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Joined: 10/08/2009
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Deus Ex Machina wrote:
Ouch! Is that in Canadian dollars?
I paid $75 each for my Interstate U2200 on my previous rig, and about $50 each for the group 24 trolling motor batteries on my present rig (the 6v ones are too heavy for my tongue).
NEVER, EVER, EVER buy batteries from an RV place!
Nope that's US dollars.. I wasn't going to get them much cheaper somewhere else in town, we got them right off the Interstate truck, since it was delivering new batteries...
We chose to purchase them at our RV center for a few reasons, first its a mom and pop service center who has been fixing our families RV's for the past 25 years, plus they had the storage boxes, cables, etc.. Sometimes you just have to support the local businesses and they will one day take care of us when we need their help. :-)
Tim and Julie
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