Murminator
Edmonton, Oilberta
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Ok I have read debates on why 2-6V are better that 1-12V but is 2-6V better that 2-12V?? I have room for either combo but limited to only 2 batteries so which ones to get?
I guess I should give some info it is a 25'TT and we random camp or "boondocking" you guys call it about 80% of the time for about 3-4 days at a time. I was also thinking of buying a small generator (1000W) to charge the batteries when we are out in the middle of the bush for longer times. I had just 1-12V on our old popup and it sucked I was always hooking up to charge it up and we only run lights, water pump, and the furnace on colder nights, nothing fancy, I really don't want to go through that pain again.
I kinda need an answer fast I have to give them a decsion by about noon tomorrow on which combo I want
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sum1
So-Cal
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(2X6)>(2X12) Quick enough?
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KSadler1
Albuquerque, NM
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Joined: 05/30/2007
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Alot on here swear by the 2-6v set-up. I prefer the 2-12v set-up because the batteries are much easier (in my opinion) to replace on an out of town trip if needed. There is a Walmart or Costco anywhere you go. I just replaced my 2-12v batteries this weekend. I went with the Costco group 27 deep cycle marine/rv batteries. They are around $66 apiece. I can't say how good they are yet, but they have to be better than my last group 24 12v batteries. We dry camp all the time and as long as you maintain your batteries, they will work fine for you. But don't think that "just running lights, water pump, furnace, etc". don't take a toll on your batteries. It uses alot more power than you think. I can see why you were disappointed with one battery though. You really do need 2 if you want any kind of longevity.....
Ken
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hwybnb
Southern California
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There is little argument that two 6-volt deep cycle batteries provide higher capacity and longer life than two 12-volt "RV-Marine" batteries. Motorhome magazine did an article on the subject last year some time and arrived at the same conclusion.
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Qc Traveler
Chateauguay, Quebec. Canada
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2 x 6 volt.
I had a discussion with the manufacturer of my Paralax 7300 convertor. I asked if a 1000 watt generator would be able to charge the batteries if I plugged the cable from the trailer directly to the generator. They said that the 1000 watt (8.3 amp) generator would not have enough power as the convertor would try to send the full amperage (9-10) to the batteries. This would cause the generator to stall. So I'll be bringing my battery charger from home and will plug that into the generator.
Fred & Brenda
2003.25 F350 6.0L 2x4 PSD CC SB Lariat
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smkettner
Southern California
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Murminator wrote:I was also thinking of buying a small generator (1000W) to charge the batteries when we are out in the middle of the bush for longer times.
If the converter is rated more than 45 amps it may overload a 1000w generator, especially if it has a boost mode.
As far as batteries, flip a coin. Heads 6v wins, tails 12v loses. 
2001 F150 SuperCrew 5.4 Lariat Offroad 4x4 Tow Package 4.10 Truetrac
2006 Keystone Springdale 249FWBHLS
12K SuperGlide, KGE3000Ti 2.3kw rated 2.6kw max
Frank's voltage booster, Prosine 1800 powered by 4 GC2 batteries
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Gale Hawkins
Murray, KY
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It does not matter or this thread would not repeat every three days. Buy the most lead you can stick in the hole and go with it. If 2-6v (because they can be taller) weight more than 2-12v then so be it. 230 amps for $130 was the best deal I could get at Wal-Mart (checked tonight and they still are $64.97 for DC-27). I wanted group 29 but went back with 27's because they are strapped down by the same piece of angle iron as my engine battery.
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BCam
Elk Grove, CA
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Generally speaking, two 6v batteries are going to be more robust than two 12v batteries and will survive more and deeper discharges. If you compare the weight of a 6v to the weight of a group 27 12v you'll see the difference.
Bob C.
2004 Nissan Titan LE Crew Cab
1999 Nash 22H (new to us 9/4/04)
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Murminator
Edmonton, Oilberta
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Thanks for all the quick replys I think I will go with 2-12V just out the convenience and less maintainence
I'm assuming a group 31 is better than a 27?
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Gale Hawkins
Murray, KY
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Remember it is weight, weight and weight if they are deep cycles. 2 - 6v just were not logical for me because can give up one and still start and have a house battery.
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