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Old 08-18-2008, 12:31 PM   #1
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I have a 2002 34' FDDS and am getting ready to replace the house batteries. I can not find the original ratings for those batteries. The batteries in there are the Interstate Workhorse 6V, but I can't find the AMP rating...any help would be appreciated.
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Old 08-18-2008, 12:31 PM   #2
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I have a 2002 34' FDDS and am getting ready to replace the house batteries. I can not find the original ratings for those batteries. The batteries in there are the Interstate Workhorse 6V, but I can't find the AMP rating...any help would be appreciated.
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Old 08-18-2008, 01:10 PM   #3
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Most likely they are the standard 6 volt golf cart batteries, which would have a amp-hr rating of around 220. I had Interstate Workhorse batteries in my '04. I don't remember the model number right off, but they were 220 amp-hr.
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Old 08-18-2008, 01:52 PM   #4
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Thanks Jim, that helps.
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Old 08-18-2008, 03:54 PM   #5
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Pete, my 2004 came with 4 0f the Interstate 6 volt "WORKAHOLIC" deep cycle part # U2200 batteries.

They are BCI GROUP GC-2, 232 Amp Hours each.

Go to the bottom of this link's page to see the specs on them:

Interstate RV Batteries

Good Luck - Glenn
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Old 08-18-2008, 04:30 PM   #6
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Pete, I replaced the 6 that the 2005 have with Interstate U2200's. I believe the next step was U2400's but I believe size was somewhat of an issue and so was price. I still have this habit of changing batteries every three years.
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Old 08-18-2008, 05:20 PM   #7
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For some reason the math isnt adding up here. Since we are operating at 12v Vs 6v, do you have to divide the amp/hrs by two for a 6v bat being used in series to support a 12v system? I recall setting my Xantrex inverter/charger at 630 amp/hrs based on six U2200s @ 105 amp/hrs each....I guess if you stay in 6v ratings, you get an "apples to apples" comparison... Also think Interstate offered a U2400 that provided 120 amp/hrs--this bat was lightly taller in dimension. The U2400 isnt on the Interstate table in above posting.
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Old 08-18-2008, 05:23 PM   #8
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INTERSTATE U2400, 251 AH, 562 MINUTES RESERVE CAPACITY @ 25A, 154 MINUTES RESERVE CAPACITY @ 75A, 11-7/8" H X 7-1/8" W X 10-1/4" L, 70 LBS, Terminal Options - auto w/ hole; threaded stud

INTERSTATE U2200,232AH,474 MINUTES RESERVE CAPACITY @ 25A,122 MINUTES RESERVE CAPACITY @ 75A, 11-1/8" H X 7-1/8" W X 10-1/4" L, 63 LBS, Terminal Options - auto w/ hole; threaded stud

BTF
05FDQS
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Old 08-18-2008, 05:28 PM   #9
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When you add batteries in series, like you would do with two 6 volt batteries to get 12 volts, the amp-hours does not change. When you add in parallel, then they add. If you connect the 6 batteries as in our coaches, you will get 660 amp-hours. Three parallel sets of two 6 volt batteries, 220 amp-hours each set of two, for a total of 660 amp-hours.

If you connected six 12 volt batteries in parallel, then you would get the 105 x 6, or 630 amp-hours.
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Old 08-18-2008, 07:46 PM   #10
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And if you add 6 Lifeline AGM batteries, you will get 660 amp hours -- 110 amp-hours per battery.
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