Do I need power at pin 4 on my tow vehicle?
I think y'all think I be dumb. I know I need to plug that big black rubber thing on my trailer into my truck (what else will keep the trailer from falling off the ball ;)) This year we're going to...
Forum Discussion
mike-s wrote:
After getting a bunch of answers indicating people don't read enough to understand the question - no, you don't need to provide +12V via pin 4 on the 7 pin connector. That's only used for charging (slowly) the battery, or keeping the fridge going if running on 12V while underway.
While I agree with this, I don't agree with this part
keeping the fridge going if running on 12V while underway your trailer battery(s) should provide enough power to run the fridge unless its a straight 12V one for a 2, 3, or even a 4 hour trip.
Battery disconnect (my understanding) is mostly use to cut the power from battery to trailer, so there is no draw on the battery from any system of the trailer while in storage.
Question why not spend a few bucks and put the fuses in your TV's where #4 pin would be hot.
