Electrical Connection when Towing
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Joined: Oct 2009
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Electrical Connection when Towing
I tow a 5th wheel with my 2004 F250 PSD. It has the tow package. My question: If I leave my 5th wheel plugged into my truck, while stopped somewhere, Can the truck batteries be affected by my using the trailers' 12v system?
Elder User
Joined: Aug 2010
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From: Ft. Worth, TX
You could only drain the truck batteries if you left the key on (and motor off) while using the trailer. If the key is off, the circuit is open (I believe there is a relay under the hood) and thus, you are only using the trailer batteries. Usually, if the key is on, I would assume that the truck is running, and in that case, you shouldn't have to worry about the batteries either as the alternator would take care of any additional load from the trailer.
Elder User
Joined: Aug 2010
Posts: 685
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From: Ft. Worth, TX
It's an excellent place to get 12v in the bed of the truck for different accessories. I am using it to power the relay on my air bag compressor, and also for my rear view camera. Don't have to worry about anything draining the battery because it's only hot when the truck is on.
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dmccorkle911
1973 - 1979 F-100 & Larger F-Series Trucks
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Feb 10, 2014 07:48 PM
Tim Pog
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
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Sep 7, 1999 10:54 PM
2008, 2010, 60, connection, connections, elctrical, electrical, explorer, f150, f250, ford, navigator, tow, towing
