Power to trailer wire

Joined
Jan 26, 2007
Messages
261
Location
Lakewood, CA
Hey guys,

I read all the trailer wiring threads, thank god i did because the recall was not done on my truck. Anyway my question revolves around where the heck to I run the charge wire for the battery in the trailer????

I was told by some folks to go direclty to the alternator, and some to the positive of the battery and other thru the fuse box. I plan on running 10awg but need a connection poin under the hood.

Any thoughts???
 

e9999

You want to do what...?
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Joined
Sep 21, 2003
Messages
16,672
Location
US
I would go directly to the battery with a fuse close to the terminal. Sure as heck not to the alternator...
 
Joined
Sep 30, 2006
Messages
818
Location
Baltimore
Battery for sure. Get an in-line fuse holder and put a spade right on the end of it to attach to the battery cable.
 

ginericLC

Wagon Wheeler!
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Joined
Jan 29, 2003
Messages
7,434
Location
MH, IDaho
And run a substantial sized wire. I'd probably run at least an 8 gauge wire. I also use 30-40 amp fuses for this application. I like to go off the positive terminal of the 2nd battery.
 
Joined
Nov 6, 2005
Messages
682
Location
Napa, California
I went to the dealer and bought another 50 amp fuse to go in the fuse block at the positive cable. I then ran 10 gauge back along the frame rail to the trailer connector.
 
Joined
Sep 30, 2006
Messages
818
Location
Baltimore
This is also a good opportunity power feed for an isolated trailer light relay and non-switched 12 volt outlets in the rear. Put it all in the left rear corner, right below the existing 12V outlet.
 

rusty_tlc

Dain Bramaged Member
 
Joined
Jun 23, 2005
Messages
13,487
Location
Reno, NV
It always starts with running a wire for one thing, pretty soon you have a cluster of wires hooked to the battery. I wish I had installed a sub fuse block when I installed my first accessory.
 
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