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01-13-2017, 11:58 AM
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#1
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Montana Fan
Join Date: May 2016
Location: Massillon
Posts: 437
M.O.C. #18658
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Dead Batteries 2016 HC375FL
I visited my HC 375 FL today after less than a month in outdoor storage. The batteries were fully charged when I left it but were completely discharged when I arrived today. The battery disconnect was turned off and the key dangling. The residential fridge inverter was off. I jumped it from the truck and found nothing left on. Any ideas what parasitic load could have killed the batteries?
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01-13-2017, 01:36 PM
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#2
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Montana Fan
Join Date: May 2016
Location: Ishpeming
Posts: 214
M.O.C. #18650
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Did you have the inverter turned off using the switch in the front compartment above the battery box?
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01-13-2017, 01:54 PM
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#3
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,364
M.O.C. #4831
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As pointed out on your Facebook post and numerous discussions here (a Search would have answered the question) the battery disconnect does *NOT* disconnect all 12V draws. There are parasitic demands by the Propane Detector, CO Detector, and the front jacks/leveling system which will suck a single battery (or even two) in a short time.
The solution is to either install a true battery disconnect at the battery *OR* simply disconnect the battery ground cable.
__________________
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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01-13-2017, 10:55 PM
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#4
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Montana Master
Join Date: Feb 2012
Location: Lake Gaston
Posts: 8,773
M.O.C. #12156
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I bought a simple blade style battery disconnect off Amazon Prime for 15 bucks. Mounts directly on the battery post.
__________________
Mike and Lorraine
2002 3655 FL, 2005 3650RK
2010 3665RE, 2015 3910FB
F350 crew cab dually 6.7
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01-14-2017, 12:20 AM
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#5
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Montana Master
Join Date: Feb 2003
Location: Englewood
Posts: 3,095
M.O.C. #164
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Quote:
quote:Originally posted by 1retired06
I bought a simple blade style battery disconnect off Amazon Prime for 15 bucks. Mounts directly on the battery post.
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Agree this is the solution!
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01-15-2017, 09:45 AM
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#6
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Montana Fan
Join Date: May 2016
Location: Massillon
Posts: 437
M.O.C. #18658
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Two Circuits are run from my battery box. One is for the residential fridge inverter with its own disconnect in the front compartment. The second circuit is for the remainder of the coach and controlled by the disconnect in the convenience center. The jack power and brake power are on that circuit before the disconnect.
My batteries went dead from the brake being actuated by the breakaway switch. Thanks for the help.
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01-15-2017, 10:20 AM
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#7
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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Yup, that would do it.
__________________
Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, and 2013 HC 343RL
Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, replaced chairs, sun screens, added awnings, etc.
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01-15-2017, 02:00 PM
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#8
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Montana Fan
Join Date: May 2016
Location: Ishpeming
Posts: 214
M.O.C. #18650
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Thanks for the update
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