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11-12-2018, 09:25 PM
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#1
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Junior Member
Brand: Thor Motor Coach
Model: Windsport 35M
State: Massachusetts
Posts: 26
THOR #13212
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Wiring of the house batteries
Can anyone send me a picture of the wiring on the two house batteries in a 2018 Windsport 35m? I stupidly disconnected them and didn't pay attention to how they were connected.
Also, is there another battery in the engine compartment?
I'm shutting down for my first winter and figured I should take all the batteries out.
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11-12-2018, 09:41 PM
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#2
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Senior Member
Brand: Thor Motor Coach
State: Georgia
Posts: 2,585
THOR #4735
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are they 12v or 6v?? take a picture and post it here so we can 'see' your situation
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11-12-2018, 09:46 PM
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#3
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Junior Member
Brand: Thor Motor Coach
Model: Windsport 35M
State: Massachusetts
Posts: 26
THOR #13212
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Quote:
Originally Posted by TurnerFam
are they 12v or 6v?? take a picture and post it here so we can 'see' your situation
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They are the two 12 volt batteries in the compartment behind the driver's front wheel. I already pulled the batteries out and put them on trickle chargers for the winter. If I took a picture, which I can't do until next weekend, all you'd see is the compartment and the wires laying down. I was hoping someone had the same RV so the wiring would be the same.
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11-12-2018, 09:50 PM
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#4
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Senior Member
Brand: Thor Motor Coach
State: Georgia
Posts: 2,585
THOR #4735
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<img src="http://www.solarray.com/Images/ImagesTGuides/drawings/BATTER~4.gif" alt="Image result for two 12v batteries in parallel"/>
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11-12-2018, 09:58 PM
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#5
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Junior Member
Brand: Thor Motor Coach
Model: Windsport 35M
State: Massachusetts
Posts: 26
THOR #13212
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Quote:
Originally Posted by TurnerFam
<img src="http://www.solarray.com/Images/ImagesTGuides/drawings/BATTER~4.gif" alt="Image result for two 12v batteries in parallel"/>
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It's a bit more complex than that.....
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11-12-2018, 10:25 PM
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#6
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Senior Member
Brand: Thor Motor Coach
Model: Windsport 29M
State: New York
Posts: 120
THOR #11919
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Quote:
Originally Posted by BobPetit
Can anyone send me a picture of the wiring on the two house batteries in a 2018 Windsport 35m? I stupidly disconnected them and didn't pay attention to how they were connected.
Also, is there another battery in the engine compartment?
I'm shutting down for my first winter and figured I should take all the batteries out.
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I have a 2018 Windsport 29M. Here is a photo of inside the battery compartment. Tight fit, they didn’t install them on a pull out tray. Best I can do for you.
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11-14-2018, 03:15 PM
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#7
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Site Team
Brand: Thor Motor Coach
Model: Axis 24.1 Windjammer
State: Illinois
Posts: 1,179
THOR #7074
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Quote:
Originally Posted by Mlleml
Attachment 14004
I have a 2018 Windsport 29M. Here is a photo of inside the battery compartment. Tight fit, they didn’t install them on a pull out tray. Best I can do for you.
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Once they are back in correctly. 
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Rev. Jeffrey 2017 Thor Axis 24.1 E450 Windjammer.
Silver Safe-T-Plus Steering Control
SSF-106-40 SumoSprings Solo Front Bump Stop SSR-107-47 SumoSprings Rear Bump Stop
Hellwig 7718 Front Sway Bar & 7180 Rear Sway Bar
Koni FSD Front Shocks 8805-1042 / Koni FSD Rear Shocks 8805-1043
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11-15-2018, 10:46 AM
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#8
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Senior Member
Brand: Thor Motor Coach
Model: Four Winds
State: Ontario
Posts: 265
THOR #9081
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Quote:
Originally Posted by BobPetit
It's a bit more complex than that.....
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It is more complex than that but it should not be. If you look at the build schematics for the battery compartment layout for your unit, then the wiring should be as shown by Mr.Turner. The potential problem or what is making it more complex is that normally extra cables are attached at the batteries instead of at the house terminal post ( where they should be attached). For instance they will connect the generator at the batteries . Again, according to the schematics, it should be at the house terminal post. I always add a catastrophic fuse at the batteries. In my opinion a Blue Sea battery terminal fuse block and fuse is a very inexpensive insurance against molten metal and exploding battery acid.
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2018 Four Winds 31Y
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11-15-2018, 12:50 PM
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#9
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Senior Member
Brand: Thor Motor Coach
Model: Axis 25.2
State: Florida
Posts: 116
THOR #13661
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Quote:
Originally Posted by Peterrrr
It is more complex than that but it should not be. If you look at the build schematics for the battery compartment layout for your unit, then the wiring should be as shown by Mr.Turner. The potential problem or what is making it more complex is that normally extra cables are attached at the batteries instead of at the house terminal post ( where they should be attached). For instance they will connect the generator at the batteries . Again, according to the schematics, it should be at the house terminal post. I always add a catastrophic fuse at the batteries. In my opinion a Blue Sea battery terminal fuse block and fuse is a very inexpensive insurance against molten metal and exploding battery acid.
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Ditto on battery fuses and Blue sea block. I use both on every vintage camper build. I ALWAYS take pics before taking stuff apart for situations like this, but in yours, I'd locate the main ground and go from there. Use a multi-meter set as in the pic, connect one end end to a known ground and listen for the sound. 4 wires should be easy (main ground to batteries, 2 foot long jumpers (1neg&1pos) to the other battery and the generator positive (which you should be able to trace its run). Whatever isn't a ground should be a positive, in theory, lol... 
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