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Old 07-12-2014, 08:19 PM   #1
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2000 Monaco Diplomat Battery Wiring Question

I just purchased a used 2000 40' Monaco Diplomat motorhome last week. I went up to it today to get it ready for an upcoming trip and discovered that the chasis batteries were dead and the house batteries weren't much better. I ended up replacing the chasis batteries with new ones, but got to wondering if my battery system was wired correctly.

There is a cable that connects the positive lead from the chasis battery to the positive lead on one of the house batteries. I've attached a photo to better illustrate...

Doesn't this defeat the purpose of having a battery isolator? I'm scratching my head as to why it would be there. Any ideas?

The bottom line is that I want to make sure that my wiring is correct. Any help that you can provide is greatly appreciated.

Thanks,

Jason
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Old 07-12-2014, 08:22 PM   #2
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I agree, don't think it should be there, not on mine

try disconnecting it, see if all works
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Old 07-12-2014, 10:01 PM   #3
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No it shouldn't have the cable between them. The only connection between the two should be the solenoid mounted behind them on the wall for when you push the switch that says battery override on your dash.
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Old 07-13-2014, 11:36 AM   #4
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That wire is a means of charging the chassis battery when the alternator is broken. The generator will then charge the chassis battery.

It should be only an emergency tactic to get to a repair source.

Remove the jumper wire and check the voltage at the chassis battery with the engine running. Should be about 13.6 dcv.
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