Connecting 12 V Battery to tongue of 77 Trillium - Fiberglass RV
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Old 07-21-2020, 09:58 AM   #1
Posts: 50
Connecting 12 V Battery to tongue of 77 Trillium

Looking for help on the wiring for a 77 Trillium. I currently have a 7 pin plug at front of the trailer. I am mounting the 12V battery and wondering can I connect to that plug? Or do I need to run a separate wire from battery to inside of trailer. This has been mentioned before I am sure but everyone,s scenario is a bit different. Any pics would help as well. Looking where to connect in the trailer or outside if that is easier. Hopefully the car charges the battery as we drive as well.
Thanks for the help
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Old 07-21-2020, 10:16 AM   #2
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Joe MacDonald's Avatar
Trailer: Trillium
Posts: 989
what size trillium? does it have a converter?
pictures of your set-up?
look under your benches for a spot where it might connect

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Old 07-21-2020, 10:24 AM   #3
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Name: bill
Trailer: 2013 Escape 19; 1977 Trillium 1300
The Mountains of North Carolina
Posts: 3,509
Short answer, YES if you have a power control center. Long answer check the wiring diagram over in the document center.

I put a seven pin connector on my 1977 1300 and added a battery on the tongue. More info over on my FB page.
Check my Trillium Project Page:
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Old 07-22-2020, 11:02 AM   #4
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dleverton's Avatar
Name: Doug
Trailer: Trillium 1300 1973
British Columbia
Posts: 242
Hey Bill, where is the “Document Center”?
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Old 07-22-2020, 12:12 PM   #5
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Name: Alexander
Trailer: 1979 Boler B1300
New Hampshire
Posts: 910
Under the More tab in the upper right-hand corner.
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