Plug or unplug that is the question

I always do.

I don't know whether I should, but I always do. Can't hurt.

I generally do, tho I rarely do not unhook. I at least use the jack to level the camper. But I pull the plug and unhook the chains for no particular reason.

I never hook up shore power without first unplugging my 7 pin.

Might be ok, but why take a chance? With all of today's hi-tech computer gizmobops in our vehicles, who know what back-feeding can do?

Hummmmmmmmm---lets see

You connect to 120VAC CG power which powers the 'charger' that maintains the battery....12VDC

Real question is:
Do you unplug the umbilical cord when parked overnight W/O shore power?

I do..........cause the truck batteries are tied to trailer batteries thru umbilical cord which could end up draining both battery systems

Some vehicles the 7 pin is not hot when ignition key if off---some it is hot all the time

I never did and never had a problem. I have never left my cord unplugged because of this.

If my trailer is connected, the 7-pin to the truck is connected.

Old-Biscuit wrote:
Hummmmmmmmm---lets see

Some vehicles the 7 pin is not hot when ignition key if off---some it is hot all the time

And on most, if newer than 1998 or so, the BCM will detect the current drain and at a certain voltage kill the circuit to the 7 way. That will happen long before the battery discharges enough to not crank the thing over. Feel lucky?

I disconnect when overnighting and not unhitching.

Definitely not all 1998 and newer, my 2001 Dodge had the batteries drained while hooked up to the trailer. This was not overnight. Not a good feeling when you turn the key and it doesn't even click. :)