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Old 07-27-2012, 12:51 AM   #15
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One hour is not long enough for the fridge to get cold. You need to let it chill over night, or at least all day.

The 675 amps is cold cranking amps(CCA). Meaning it can put that much out in short bursts, as in starting. 6 volt golf cart/RV batteries are rated in ampere hour. How many sustained amps they can put out over a certain period of time. See post #4. Trojan and other RV 6 volt batteries are usually rated around 225 amps, but that isn't CCA. Go here and look at the ratings for a T-105.

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Old 07-27-2012, 11:19 AM   #16
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Originally Posted by Dunner View Post
Read it again Jim & Pete. He has two 12 volts wired in series for 24 volts. It's wired the same as when he got it, but it should have 6 volt batteries instead of 12 volt. It would work if the 12 volt batteries were wired in parallel. Hopefully no damage has been done.

coach > negative > positive > negative > positive > coach
Originally Posted by Bigd9 View Post
In his original post he said
When I Googled these I saw they were 12 volt batteries. Batteries - Marine R/V - 30 Months - 675 CCA

Then he posted he had wired them as I interpreted this as neg on bat 1 to neg on bat 2, Pos Bat 1 to Pos bat 2, or like the drawing I posted. Was I wrong? If so I am deeply sorry for any confusion.
I read it the same way.. no worries..

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Old 07-27-2012, 01:06 PM   #17
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If you use (2) 12 volt batteries wired in (parallel) you will have 12 volts with the amperage of each battery available for a short time. Unless the batteries are deep cycle batteries they will not run the coach on purely battery for as long as 2 large 6 volt deep cycle batteries wired in (series) will. Large coaches have (4) 6 volt batteries wired to provide 12 volts to the system. They are high capacity deep cycle, deep discharge batteries. Mine will run for days providing inverter power for TV, vents, lighting and such. Never saw a motorhome wired for 24 volts but I never saw a million dollars either. Careful when you decide on how you will proceed with your batteries. It only takes a second to undo many $$$$$$ of things in you motorhome.
2003 Newmar Kountry Star 3905, Freightliner XC chassis with CAT 330. Winnie the black lab, pretty Airbus captain wife, retired airline pilot with 11 grandkids. UH-1 pilot (Huey) U.S. Army 1967-1983. RVN 68-69. Northern Idaho my summer home.
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Old 08-11-2012, 01:50 PM   #18
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Thanks to everyone!

The Bounder has two new 6 volt batteries as it should be. All systems are working properly. Taking first short trip to San Diego next week. Thanks again.

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Old 08-11-2012, 01:58 PM   #19
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I have a 2004 Bounder 35R and the two batteries are 6volts each hooked in series to give me 12volts. If you are hooking two 12volt batteries make sure they are parallel.

Richie, Rose and our Australian Terrier Harley
2004 Bounder 35R, 2012 ACME EZtow,2012 Kia Rio Hatchback
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