Aux power?

[Thelgord]

I was looking at the wiring diagram for my 7 pin plug and notices a port for "Aux Power". Any ideas on what it could be used for?

[bdosborn]

That's where you plug in the flux capacitor. Make sure you use wire that is rated for 1.21 gigawatts.

-or-

You can use it to charge your battery from the tow vehicle.

Bruce

[Socal Tom]

I believe that's where you can send power from the tow rig to the trailer. I use mine to charge the battery while driving.
Tom

[dales133]

Or for electric brakes.
I wouldn't imagine it would do the best job in the world at battery charging would it?
Here we generaly use battery sized cable and anderson plugs to charge

[MtnDon]

Brakes have their own terminal set. My 7 pole connector came with 10 gauge wire used for the Aux terminal set. Good enough for up to 30amps.

[Socal Tom]

Or for electric brakes.
I wouldn't imagine it would do the best job in the world at battery charging would it?
Here we generaly use battery sized cable and anderson plugs to charge

I use mine to charge the TD battery.... well, to maintain the charge while towing. It makes up for the 12V fridge, and adds a little bit more. With a 100amp battery at 50% it would probably take 5 or 6 hours to bring it back to 90%, but it helps.
Tom

[dales133]

Generaly here we use 13.5mm2 witch is 6 B&S.
It's heavy battery sized sized cable and used to eliminate voltage drop.
I'll be using this on mine as I've got 2 batteries in my land crusier and will run of those as well without to much voltage drop but I know our trailer plugs like almost anything electrical are very differnt