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Old 03-28-2011, 04:32 PM   #1
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battery control center - sdc-107a

We have a 2007 georgetown 350dsse, last week I installed two six volt batteries because the last two 12 volt kept going dead, after installation everything worked great, three days later we were going to go camping and the batteries were dead. I pluged into shore power (15)amp nothing. I started the motorhome they began charging. Got to the campground pluged into 50amp also began charging, during the night, the solonoid began clicking off and on. when we got home I checked the voltage 12.9 in two minutes it drained to 5.9. The next morning 3.2 when I disconnected the teminals it was 7.66. Forest River says it's the battery control center $349.00, just hate to spend that if it's not the problem. Any suggestions?
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Old 03-28-2011, 06:32 PM   #2
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BCC Schematic

The following BCC attachment was posted some time ago. Maybe it will help you.
Attached Files
File Type: pdf rv custom products SD1070001.pdf (1.34 MB, 998 views)
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Old 03-28-2011, 09:21 PM   #3
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Thanks MBTELGUY, I recieved that one plus a schematic, also someone said just the board may be replaced but I don't know if Forest River sells them or the whole box.
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Old 03-28-2011, 10:01 PM   #4
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what would happen if u charged the battery and disconnected the converter/charger from the bat? meaning disconnect the dc wires from the converter. would the batteries drain?
i would try and prove that there isn't something else dragging the bat down.

i'm toying with the idea that the converter could have an internal problem.
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Old 03-29-2011, 09:10 AM   #5
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jimh, I charged the batteries yesterday and disconnected them, I have to go out of town this morning when I get back I'll try that. Thanks for the input
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Old 03-29-2011, 10:37 AM   #6
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u said the reason u went to two 6 volt bat was because the bat wouldn't last very long. did all work ok before u changed them (would charge ok and not drain when not in use)?
i generally tend to look at the last thing i did very carefully. see if clearances are ok with the new bat. if there is a dimension change, something may be touching that shouldn't be when it is all back together.

i'm not going to pretend that i know abt ur electrical system. from looking at the block diagram that mbtelguy posted, it appears the controller is there to keep the viehicle electrical system from being dragged down. it may be doing what it is designed to do.
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Old 03-29-2011, 01:22 PM   #7
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jimh , I switched to 2 six volts because motorhome magizine says it's much better than 1 12v. the 12v that originally came with the unit looked used last year my son gave me a good? 12v deep cycle and after sitting a mounth or two they needed charged. this problem of discharging in two minutes only began with the 6v. forest river recommended taking the 2 6v out? & put 1 12v back in (after paying for 2 6v I think not) I'm even wondering if the batteries were wired right the first time. red-pos/black-neg 2 fused 14ga-pos and 1 14ga green-neg. also can't find where to purchase circuit board seperatly. thanks again
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Old 03-29-2011, 06:19 PM   #8
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another thought. try charging the two 6v bats then disconnecting them from the trailer. one of them could be bad and dragging them both down. sense they are in series, u shouldn't have to disconnect between them.
the fact that it worked for 3 days points to something other the bat to me.
that controller may have problems but sense it doesn't actually charge the bat, i'm leaning away form it.
my truck behaves like that when one of the batteries goes bad.
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Old 03-29-2011, 08:26 PM   #9
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Forest River BCC Schematic

Hi ! I'm sorry but I forgot I had this attached schematic, which may help you
localize the problem. If you have already determined where the trouble is
ingnore the following suggestions.

First is the battery connect light on when your Motorhome is not connected to shore power ?
If it is not, the battery will not receive a charge from the converter.
After charging the battery operate the disconnect switch and disconnect from shore power confirm that the battery light goes out and see what happens to battery charge.

Second, you seem to indicate that the battery is discharging to a rather low voltage in a matter of minutes, True ?
If true maybe disconnect the hydraulic pump and step battery feeds. See circle/arrows I added to the attached schematic

The last thing you may want to try is to charge batteries and then disconnect the converter see the other circle/arrow I added to scematic.
Attached Files
File Type: pdf Georgetown Battery Connect Center 113174 1 OF 1.pdf (318.6 KB, 675 views)
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Old 03-29-2011, 08:31 PM   #10
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LP detector

Sorry I should have included LP detector in my suggestions.

I wish you the best.

Gary
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