Lance TC - lithium - DC-DC charger question

orourkmw wrote:
BFL13: what is the size of your “bypass wire” that carries the current to the DC-DC?

I got into the wires for the 7-pin for the camper that comes up between the cab and the box and dug out the 12v wire before it gets to the truck's 7-pin connector. That wire is maybe #10 or even #12 not sure.

I then added on a length about 1 foot of #8 to come out of the wrapped cord and have another maybe 3 feet of # 8 wire-nutted to that and going up into the camper and onto the DC-DC input. I have a fatter wire for the neg on the DC-DC input that comes down and its end is jammed under the aluminum rail cap which makes it truck frame grounded.

I will try for a photo here of the ugly mess. If I ever get the ambition, I can do it properly someday.



I drilled a new hole beside the camper's 7-pin up under there for the pos and neg (to frame) wires. The battery box is in the front driver's side of the camper so it is all together in that front corner.

The 7-pins have no 12v pin 4 at all now. No brake line either--so it is sort of 5 pins :)

Note the other 7-pin at the back bumper is not affected by all this

Now I am thinking that wire nut on the red wires there could act as my isolator instead of going back to the camper to turn it off when we stop somewhere. The little B+ on/off wire goes to that red input wire.