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Old 11-12-2017, 07:38 PM   #1
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Battery shut off switches / battery charger

I have 2 shut off switches inside our coach for the house batteries.
When the switches are in the off position there is no 12-volt power going to anything inside the coach such as the CO2 or Propane Detectors.
My question is:
When the Battery Shut Off Switches are in the "OFF" position and the coach is plugged into shore power, is the battery charger receiving 110-volt power, and, are the batteries being charged?
My sense is that once the Shut Off Switches are in the off position there is "NO" charging happening.
I look forward to getting some clarification.
Thank you.
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Old 11-12-2017, 07:43 PM   #2
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There is most likely power going to the charger but not getting to the batteries.

A cheap simply volt meter will confirm when charging is present or not.
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Old 11-12-2017, 07:46 PM   #3
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If you would please indicate make model and year of RV you are asking the question about you will get more accurate answers to your question. Not RVs are the same in almost every area including this one.

That said, if your RV is receiving 120 volt power, don't put the shut off switches in shut off mode. Their purpose is to use when NOT on shore power, they remove almost all loads off the coach batteries and take almost all loads off the chassis battery. This allows the coach to sit for up to about 3-6 months and have enough charge left on the coach and chassis battery to resume using the coach without having to charge the batteries to start the coach and drive it.

On a newer Winnebago, with the coach shut off switch in the SHUT OFF position, the converter charger is not connected to the batteries. On a newer Winnebago, the step controller board is still connected to the Chassis Battery and the electric steps will still operate. It draws minimal power when coach door is shut.
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Old 11-12-2017, 08:04 PM   #4
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Quote:
Originally Posted by Jim.B1 View Post
,,, My question is: When the Battery Shut Off Switches are in the "OFF" position and the coach is plugged into shore power, is the battery charger receiving 110-volt power, and, are the batteries being charged?
Yes the charger is receiving 120VAC but no the batteries will not be receiving a charge while the charger will be powering the various 12VDC house systems. But, there's always one of those, there could be a few installed devices that are still powered from the batteries such as the propane, CO detector or such. It can vary between coach builders. Same for the engine or chassis batteries.
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Old 11-12-2017, 09:24 PM   #5
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I started this thread on the "Battery Shut Off Switches" and did not include the make and model of the RV.
My question refers to a 2014 Fleetwood Southwind 32VS.
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Old 11-12-2017, 09:25 PM   #6
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Any time your BCO switch is operated your batteries will not be charged, if its on not sure it will charge all your batteries in what I think you havea Bounder if I'am correct.
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