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03-22-2020, 06:42 PM
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#1
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New Member
Join Date: Mar 2020
Location: St Catharines
Posts: 8
M.O.C. #25991
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Switching from shore power to RV battery power
Is there a switch to change the unit from 110VAC that is going through the inverter to, I hope, charge the RV battery?
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03-22-2020, 07:03 PM
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#2
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Montana Master
Join Date: May 2019
Location: Alton
Posts: 2,708
M.O.C. #24086
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When you are plugged into 50A electrical outlet, your "converter" should automatically charge your battery.
Keystone montana electrical
https://www.keystonerv.com/upper-nav...trical-systems
Make sure your battery disconnect switch in the convenience center is in the "ON" position.
__________________
Daryl and Marianne,
2019 3130re 20th Anniversary Edition
2016 F350 Lariat
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03-22-2020, 07:22 PM
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#3
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Montana Fan
Join Date: Jul 2015
Location: Edgerton
Posts: 218
M.O.C. #17678
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Quote:
Originally Posted by Daryles
When you are plugged into 50A electrical outlet, your "converter" should automatically charge your battery.
Keystone montana electrical
https://www.keystonerv.com/upper-nav...trical-systems
Make sure your battery disconnect switch in the convenience center is in the "ON" position.
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Actually, he wants the battery disconnect switch in the "OFF" position. The switch acts in the opposite way that you would think. "ON" is disconnected, "OFF" is connected. If you can pull the red key out, the switch is disconnected. Always leave the battery disconnect switch in the "OFF" or connected position when the RV is in use.
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03-22-2020, 07:54 PM
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#4
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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__________________
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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03-22-2020, 07:56 PM
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#5
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Montana Fan
Join Date: Mar 2019
Location: Chino Valley
Posts: 226
M.O.C. #23720
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My disconnect is in the on position when you can’t remove the key! I just went and checked I have no power when the switch is in the off position and key is removed.
__________________
Steven & Denise
New to us 2014 3150RL
Chino Valley, AZ
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03-22-2020, 08:11 PM
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#6
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New Member
Join Date: Mar 2020
Location: St Catharines
Posts: 8
M.O.C. #25991
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Switching from shore power
So I need to have the switch in the convenience centre OFF when the RV is not on shore pwere?
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03-23-2020, 04:14 AM
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#7
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Montana Fan
Join Date: Jul 2015
Location: Edgerton
Posts: 218
M.O.C. #17678
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Quote:
Originally Posted by Kiwi&Major
So I need to have the switch in the convenience centre OFF when the RV is not on shore pwere?
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Only turn the switch to the disconnected position (the position that allows the key to be removed) when the RV is in storage, or not being used for an extended period. (Warning! There are a few things that are NOT shut off when you disconnect the battery. Propane detector, CO detector. They will kill the battery in a matter of a week or two, depending on number of batteries, size, etc.) It should be in the connected position any time the RV is in use. The battery must always be connected when hooked to shore power. It acts as a “buffer” for the converter. The converter changes 120v A/C to 12v DC to charge the battery. The battery supplies power to 12v loads such as lights, furnace fan, slide out mechanisms, roof vent fans, stereo, etc. Your inverter takes 12v DC from the battery & changes it to 120v AC to operate items such as a residential fridge. They are 2 separate things that do the exact opposite of each other. Don’t overthink it.
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03-23-2020, 08:53 AM
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#8
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Montana Master
Join Date: Oct 2017
Location: Bee Branch
Posts: 2,620
M.O.C. #20693
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Quote:
Originally Posted by Tom N OH
Actually, he wants the battery disconnect switch in the "OFF" position. The switch acts in the opposite way that you would think. "ON" is disconnected, "OFF" is connected. If you can pull the red key out, the switch is disconnected. Always leave the battery disconnect switch in the "OFF" or connected position when the RV is in use.
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Ok now I am confused......
__________________
James & Irene Wilson
Bee Branch, AR.
2017 Ram 1 ton diesel duallyCrew Cab/Long Bed
2018 Montana High Country 381TH Garage Full of Toys
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03-23-2020, 09:02 AM
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#9
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Montana Master
Join Date: Apr 2006
Location: Mesa az
Posts: 2,956
M.O.C. #5651
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Don't worry about on or off. When rv in use, make sure you can NOT remove the key. When not being used, turn to allow key to be removed, but remember the battery is still being used for some things. So if long term storage, disconnect a battery cable somehow.
__________________
Tom and Gail
2013 Mountaineer 362
2012 Silverado 2500
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03-23-2020, 09:24 AM
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#10
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Montana Fan
Join Date: Jul 2015
Location: Edgerton
Posts: 218
M.O.C. #17678
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Quote:
Originally Posted by mtlakejim
Ok now I am confused......
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You have to remember it’s a battery DISCONNECT switch. On means disconnected. Off means connected.
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03-23-2020, 11:22 AM
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#11
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Montana Fan
Join Date: Mar 2019
Location: Chino Valley
Posts: 226
M.O.C. #23720
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off or on
Quote:
Originally Posted by mtlakejim
Ok now I am confused......
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Forget off and on. IF you can take the red key OUT of the socket, 12vdc is OFF to the rig. IF you can't pull the key out, your 12vdc is turned on for your rig!
The only time I take the key out, is when the trailer is NOT in use.
__________________
Steven & Denise
New to us 2014 3150RL
Chino Valley, AZ
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03-23-2020, 03:19 PM
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#12
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Montana Master
Join Date: Jan 2017
Location: home base IL, OTR anywhere
Posts: 533
M.O.C. #19382
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Quote:
Originally Posted by Tom N OH
You have to remember it’s a battery DISCONNECT switch. On means disconnected. Off means connected.
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My head hurts. mtlakejim... I feel your pain. I'm not even sure which switch they are talking about.
__________________
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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03-23-2020, 04:55 PM
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#13
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Montana Master
Join Date: Jun 2018
Location: Carson City
Posts: 2,017
M.O.C. #21963
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The easiest thing to do is remove that switch since it doesn't actually disconnect the battery anyway. It's purpose is to look good on the showroom floor. Then install an actual disconnect switch near the battery.
__________________
2016 3160, Legacy, Sailuns, Splendide 2100 xc vented, 1 1/2" axle lift blocks, disk brakes. 2014 Ram 3500 SRW SWB 4X4 6.7 Aisin Mega Cab, EBC slotted disks and brakes, Titan fuel tank.
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03-23-2020, 08:20 PM
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#14
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Montana Master
Join Date: May 2019
Location: Alton
Posts: 2,708
M.O.C. #24086
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Quote:
Originally Posted by mtlakejim
Ok now I am confused......
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Dont worry, just go try it. You wont break anything.
Picture of mine in the "ON" position.It has been in this position since I bought it. Its plugged into 50A receptacle at home.
When we disconnect the 50A, the 12v battery system works just fine.
A guy once said "ignore the word DISCONNECT, just go with battery ON/OFF.
The arrow points to the OFF position in the other picture.
If its OFF, the key will cone out.
Just go ahead and try it. No worries.
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03-24-2020, 12:16 PM
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#15
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Established Member
Join Date: Mar 2020
Location: Lake Havasu City
Posts: 16
M.O.C. #25995
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I am new to this thread and to RV ing. I have a 2014 3100RL. Had for a year now and had several trips. Now I cannot get power from the Battery, but when I hookup to 50amp all is good. Battery is good. I was told to check the [self ] setting relay ?? All connections are tight. Would the converter be bad after only a few years, all fuse are good as well. Thx Larry
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03-24-2020, 01:21 PM
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#16
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Montana Master
Join Date: Dec 2007
Location: Kansas City, Missouri
Posts: 2,708
M.O.C. #7992
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Sounds like your battery disconnect switch got changed. Find it and move it to the position where the key cannot be removed.
__________________
2006 3000RK
2009 Ram 2500
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03-24-2020, 03:55 PM
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#17
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New Member
Join Date: Mar 2020
Location: St Catharines
Posts: 8
M.O.C. #25991
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My problem with the battery power to my RV is more serious than I first thought. When the truck is hooked up & running there is no power to the RV. The clearance lights come on but that's all.
I looked @ all the fuses & none that I can find have been blown. There is one in the compartment with the hydraulic drive, others @ the panel inside the unit. Clearly I have missed one main fuse. The tip outs are extended that I can't retract so I'm in a corner here. Any suggestions are welcome.
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03-24-2020, 04:06 PM
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#18
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Montana Fan
Join Date: Jun 2019
Location: new river
Posts: 415
M.O.C. #24181
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does everything work when connected to shore power? I had mine at a dealer for a while when i went to pick it up i could not lift the legs,dead batteries. hooked up to truck and waited for a while 45 min still would not work. finally ran the shore power cord out and hooked up and legs then worked. just a thought to check
al meyer
3931fb
az
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03-24-2020, 04:39 PM
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#19
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Established Member
Join Date: Mar 2020
Location: Lake Havasu City
Posts: 16
M.O.C. #25995
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All is good with shore power. Batt is good. Took out the batt connect switch and could not get any kind of reading on my tester in any of the 2 positions, but I'm not an electrician. Still no power to coach in Batt only mode.
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03-24-2020, 05:34 PM
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#20
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Montana Fan
Join Date: Jun 2019
Location: new river
Posts: 415
M.O.C. #24181
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mine has a disconnect above the batteries and also the one in the wet bay. you said the batteries have good voltage, at the battery but no voltage at the disconnect above the battery what voltage at batteries?
al meyer
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