Originally Posted by Preston
My electric tongue jack is not wired to the battery, it came with a 7pin connector wired to jack. I plug it into TV for power, then unplug it and connect 7pin trailer wires to TV for traveling.
That is an interesting way to do it. Wonder why they did not wire it to your battery?
I would be interested in taking a voltage measurement at the jack when it is operating from the 7 pin. I have a 30 amp (or is it 40?) supply to AUX, but I am suspect on the voltage loss at higher amperages.