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07-29-2020, 01:56 PM
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#1
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Established Member
Join Date: Oct 2016
Location: Syracuse
Posts: 12
M.O.C. #19135
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Battery disconnect
Do you remove the battery disconnect switch when connected to shore power? If so how often do you charge the batteries ? Thanks in advance
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07-29-2020, 02:37 PM
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#2
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Montana Fan
Join Date: Jul 2018
Location: Fullerton
Posts: 213
M.O.C. #22148
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I'm not sure what you mean by "battery disconnect switch." Are you referring to the battery switch in the convenience center? I always leave my batteries connect when I'm hooked up to shore power. That way they are recharged. I do pull my batteries when my 5th wheel is in storage and hook them up to trickle chargers here at home.
D.
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Donjamin & Laurie
Fullerton, CA
2016 Montana Legacy, 3160RL
2023Ford F-350 SD 4X4
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07-29-2020, 08:24 PM
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#3
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Montana Master
Join Date: Feb 2012
Location: Lake Gaston
Posts: 8,773
M.O.C. #12156
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When connected to shore power you need to keep the battery/batteries on line both for charging and because some 12v is still required, ex igniters. I never touch the switch which does not completely isolate the battery anyway but do use a blade disconnect directly off the neg battery terminal when the rig is not in use.
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Mike and Lorraine
2002 3655 FL, 2005 3650RK
2010 3665RE, 2015 3910FB
F350 crew cab dually 6.7
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07-29-2020, 09:40 PM
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#4
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Montana Fan
Join Date: May 2019
Location: Lakewood
Posts: 394
M.O.C. #24110
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Yeah, I don't touch the switch when I'm connected to shore power, why?
__________________
2023 Jayco North Point 310RLTS
2022 GMC Denali Ultimate DRW
AirLift 5000 Airbag Ultimate
Retired Army MSG
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07-30-2020, 05:18 AM
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#5
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Montana Master
Join Date: Aug 2009
Location: Grand Rapids
Posts: 1,898
M.O.C. #9561
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don't touch the battery disconnect, so the answer is NO
if you want to store your trailer, unplugged, just disconnect the negative.
question: what are your referring to on charging batteries? they charge when you are plugged in.
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07-30-2020, 09:04 AM
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#6
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Montana Fan
Join Date: Jun 2018
Location: Jacksonville
Posts: 384
M.O.C. #21993
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I never disconnect the batteries, they charge on shore power and charge on solar when no power. If I didn't have solar I would either disconnect the negative terminal (used a knife switch in the past) or pull and put on a trickle charger.
My last trailer didn't have solar so I bought a solar Battery Tender for storage.
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I was once intelligent beyond my years. Now, I’m years beyond my intelligence.
2020 Montana 3561 Legacy, everything except paint.
2018 Silverado 3500 DRW, 50Gal Transfer Flow, Andersen hitch.
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06-22-2021, 07:39 PM
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#7
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Seasoned Camper
Join Date: Jul 2019
Location: Pahrump
Posts: 65
M.O.C. #24555
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When you travel, what position is the blade in?
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06-23-2021, 05:39 AM
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#8
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Montana Master
Join Date: Oct 2018
Location: Anderson
Posts: 2,790
M.O.C. #22835
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I never turn my battery disconnect off. It's also never in storage. I do have a second disconnect for the inverter that powers the refrigerator when not plugged into shore power. I do keep that one turned off, unless we are actually traveling on the road. No need for the inverter running when we have shore power. And this has been a good year so far, we've not had any power outages that lasted longer than a few minutes.
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History is not about the past, it's an explanation of the present.
2019 Montana High Country 375FL
2014 Chevy Silverado Duramax, 6.6L Dually
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06-23-2021, 06:40 AM
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#9
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Montana Master
Join Date: Aug 2015
Location: SWFL
Posts: 965
M.O.C. #17801
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I leave the batteries connected when towing or on shore power.
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2016 Montana 3711FL
2005 Ford F350, 6.0 diesel, short bed
Demco Hitchiker Auto Slide hitch
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06-23-2021, 07:54 AM
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#10
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Seasoned Camper
Join Date: Jul 2019
Location: Pahrump
Posts: 65
M.O.C. #24555
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Thank you ! Mystery solved.
Liz
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06-27-2021, 05:02 PM
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#11
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Montana Master
Join Date: Jan 2017
Location: home base IL, OTR anywhere
Posts: 542
M.O.C. #19382
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Sooooo... convenience bay battery disconnect switch on or off? What is not connected or connected when that switch is switched. I can't tell if it even works. Everything seems to be "on" whether the disconnect switch is on or off. What am I missing?
The disconnect in the battery bay clearly is for the inverter running the residential fridge only.
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2017 RAM 3500 Laramie CCLB Dually CTD Aisin, OEM auto level rear air-ride, B&W hitch
2020 3813MS Legacy Cobalt FBP, MORryde 8K IS & pinbox, PI EMS,DIY mods by in-house "craftsman", RV security system Mk1 Beagle Alerter
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06-27-2021, 05:41 PM
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#12
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,696
M.O.C. #4831
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The battery disconnect in the convenience center should be left ON all the time. It does not disconnect all 12V power as the hydraulic system (jacks and slides), propane detector and other small things are on and constitute a parasitic drain that will empty a battery in a week or two.
If you want to disconnect the battery, remove the negative battery cable or install a real disconnect switch at the battery.
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Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
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06-27-2021, 06:44 PM
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#13
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Montana Master
Join Date: Aug 2015
Location: SWFL
Posts: 965
M.O.C. #17801
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I don't know what it does, either, and I really don't care LOL. I installed a cutoff at the batteries to totally disconnect everything so the batts won't run down in 2-3 weeks.
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2016 Montana 3711FL
2005 Ford F350, 6.0 diesel, short bed
Demco Hitchiker Auto Slide hitch
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06-29-2021, 06:33 PM
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#14
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New Member
Join Date: Feb 2021
Location: Cropwell
Posts: 3
M.O.C. #28108
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The battery disconnect in the wet bay cuts off the battery from the main DC system, including the charger. It does not cut off anything that is wired directly to the battery, such as the inverter or the jacks. The inverter has its own separate disconnect.
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