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06-19-2021, 02:17 PM
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#1
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Senior Member
Join Date: May 2021
Location: Ks
Posts: 218
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Solar question
While researching solar power a question came to mind. With the ORV prewired for solar panels on the roof or the portable unit by the door, when the main 12volt switch is turned off, does this disconnect the solar to the batteries also? Or do they remain useful for keeping the batteries charged while in storage?
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06-19-2021, 04:31 PM
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#2
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Senior Member
Join Date: Sep 2020
Location: Boise, ID
Posts: 712
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My trailer does not disconnect the solar panel when I turn off the disconnect switch.
My battery manufacturer recommends disconnecting the solar panel for storage, so I climbed up on the roof and unplugged my solar panel for the winter.
__________________
2018 F350 Limited, 2021 Arctic Fox 27-5L
300 Ah Battleborn LiFePo4, 3kw Victron Multiplus, 600W Solar, SeeLevel
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06-20-2021, 04:58 AM
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#3
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Senior Member
Join Date: May 2021
Location: Ks
Posts: 218
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Thanks for the confirmation. With my motorhome, I removed the batteries in the winter and the heat of the summer if I was sitting for a long time. Stored them in my temperature controlled garage. Keeping them charged and comfortable saved a lot of money on replacing.
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06-20-2021, 05:18 AM
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#4
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Member
Join Date: Jun 2021
Location: Cape Coral, FL and Pittsburgh, PA
Posts: 58
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Many solar controllers must be connected to the batteries BEFORE connecting solar panels to the controller. Otherwise damage can be done to the controller.
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06-20-2021, 07:08 PM
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#5
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Senior Member
Join Date: Dec 2018
Location: California
Posts: 715
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Looking at the factory wiring diagram and also using mine, the solar stays connected when the battery disconnect is in the off position.
__________________
V465
2015 Creek Side 20fq, 450 Watts of Samlex Solar,
2013 GMC Denali, Duramax, Retired in 2021
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06-21-2021, 02:53 AM
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#6
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Senior Member
Join Date: May 2021
Location: Ks
Posts: 218
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Thanks for the responses. I'm slowly getting my learning curves flatter.
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06-21-2021, 03:32 AM
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#7
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Junior Member
Join Date: Jun 2021
Posts: 21
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This is good information for me. I'm thinking to install a solar panel in my home also.
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06-21-2021, 09:26 AM
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#8
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Senior Member
Join Date: Dec 2012
Location: Oregon
Posts: 6,657
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I would and did install a breaker between the panels and the controller. That way I can disconnect the panels from the controller and battery.
I also installed a solar controller in the basement for the portables I use with the Zamp exterior connector. I put a breaker there also.
https://www.ebay.com/itm/18489675068...BoCkZgQAvD_BwE
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06-21-2021, 01:39 PM
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#9
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Senior Member
Join Date: May 2021
Location: Ks
Posts: 218
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Cumminsfan, I'm not sure I follow. Does the exterior connector not put its power thru the existing controller? Or have you added this as an added safety factor/convenience?
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06-21-2021, 01:46 PM
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#10
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Senior Member
Monaco Owners Club Freightliner Owners Club Holiday Rambler Owners Club
Join Date: Sep 2019
Location: Thornville, Ohio
Posts: 3,697
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My solar controller is wired to the battery bypassing the battery master switch. I also installed 2 switch. 1) controller to battery, 2) controller to solar panel, also a fuse.
Quote:
Originally Posted by Cumminsfan
I would and did install a breaker between the panels and the controller. That way I can disconnect the panels from the controller and battery.
I also installed a solar controller in the basement for the portables I use with the Zamp exterior connector. I put a breaker there also.
https://www.ebay.com/itm/18489675068...BoCkZgQAvD_BwE
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__________________
Art & Joyce
Thornville, OH
Kia Soul pushing a 36' DP Endeavor
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06-21-2021, 09:55 PM
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#11
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Senior Member
Outdoors RV Owners Club
Join Date: Oct 2014
Posts: 3,539
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There is no need to disconnect the panels for winter storage and by leaving them connected your batteries do not need to be removed either. The charge controller will not overcharge them but will keep them topped off which prevents them from freezing down to -70 F or so. A switch before the charge controller is nice to have so you do not need to cover the panels in order to work on the system. As mentioned it will fry the charge controller if you disconnect the battery before covering or disconnecting the panels from the controller.
__________________
2020 F28 RKS Titanium
2017 Creekside 23 RBS Sold
2016 F250 Super Crew XLT Overworked
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06-22-2021, 05:02 AM
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#12
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Senior Member
Join Date: May 2021
Location: Ks
Posts: 218
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Keymaster, what type of batteries are you referring to not freezing to -70, lead acid, AGM or Lithium? Living in Ks, I've seen temps as low as -15 so I worry about batteries getting to cold. The batteries that I had in my DP were lead acid and I removed them to my garage in winter to keep them warm.
With solar, would it be possible/worthwhile to possibly put a small thermostatically controlled electric heater in the battery compartment which would be powered by the batteries or solar panels. Don't know if such a creature exists, but was just a thought.
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06-22-2021, 10:08 AM
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#13
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Senior Member
Join Date: Dec 2012
Location: Oregon
Posts: 6,657
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Quote:
Originally Posted by 4everlooking
Cumminsfan, I'm not sure I follow. Does the exterior connector not put its power thru the existing controller? Or have you added this as an added safety factor/convenience?
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For reference my 2019 25RDS has the wiring for the exterior connector running straight to the battery. The wires run in between the corroplast and under the flooring. They connect under the floor at a junction point along with other wires from, your guess is as good as mine.
I didn't have an existing controller either for the roof panels or the Zamp sidewall connector. I put a Victron in the upper bedroom cabinet for the roof panels and had a EPEVER from another project that I installed in the front storage compartment.
The exterior port is for portable panels that would have their own solar charge controller. I happened to have an extra one so I installed it in the front bay on the street side. I ran new wires from the port to the controller and then from the controller to the junction points under the floor.
I know the wires only go from the port to the under floor junction because I taped on the new wire to the OEM wire to fish it through. Had it been connected to anything else it wouldn't of been able to be pulled through.
If you stick some 12V tester leads into the Zamp sidewall port you'll get a battery level readout with no other controllers or panels installed.
FWIW I removed the Zamp port a little ways and had my wife pull he wires so I could tell which were which.
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06-22-2021, 10:23 AM
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#14
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Senior Member
Join Date: Oct 2015
Location: Washington
Posts: 1,852
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Quote:
Originally Posted by 4everlooking
Cumminsfan, I'm not sure I follow. Does the exterior connector not put its power thru the existing controller? Or have you added this as an added safety factor/convenience?
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In most cases "solar ready or solar prepped" is nothing more than an external connector with wires that terminate near the batteries. Some have conduit and a box on the roof to allow easy wiring. These are "selling features" to make a unit seem more valuable. My trailer has a 10 amp eternal solar plug which is totally worthless in my case. Being on the side of the RV it is even less useful if you plan on installing a system vs using portable panels.
You are are still responsible for supplying all of the equipment to actually have useable solar.
It is always good to ask what "solar read or solar prepped" really means on any unit you are looking at.
__________________
Boondockers
2014 Volvo 630 Tandem 2016 Chevy 3500 DRW, crew cab
2016 Fuzion 325T, 675ah AGM, MSH 3012 inverter, 1400w Solar
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