My New Solar System Overview.

greenno wrote:
I disabled my 7 pin power wire. Remember, the Victron dc dc charger is an isolated system and it is forcing your truck to supply30 amps in my case. I decided it would not be good to connect the non isolated 7 pin wire as it could be detrimental to the dc dc charger. It may be acting as a return path siphoning off power from the dc dc charger that should be going to yourTC lithium batteries. I'd disconnect yours, you don't need it with the new charger.
The more I use this system, the more impressed I am with it. I'm at the Grand Canyon now and its in the low teens at night. I run my furnace all night, 70 degrees, use my laptop a d lights, the lowest I've gotten is 80% charge and my 700 watts solar hasme fully charged by noon. If cloudy or rainy, I drive somewhere and the dc dc charger pumps in 360 watts and charges the batteries in a couple hours or less. It's a winner all day and night. Love my setup. Best of all, with lithium, it's constant voltage, not a gradual dimming or slowing of motors like furnace and water pump you get with lead batteries. Take care.

Couple of things to clarify:

Camper is not new it's a 2019 but that's beside the point.

Pretty sure you want an isolated DC-DC charger as the truck and camper are separate power sources.
The unit I have is an Orion TR Smart Charger "Isolated" 12/12/18 so I only have a max of 18a or so flowing through the #10 hot wire in my 7-pin connector which can safely carry that amperage all day long.

Also when the truck is not running and not providing a charge from the alternator the Victron unit "Isolates" itself from the truck so no possibility of drawing and power from the truck battery's.

Isn't your furnace Propane? Or do you use a 120v heater. Either one shouldn't draw on your battery's.

Love going out to the GC in Feb it's not crowded and might get some snow. We usually stay in the campground next to the RV site as there is usually never anybody there and were pretty self-sufficient.

I definitely have to much time as I'm in the process of installing an inverter in the generator compartment so the wife can use the micro and I can charge my e-bike battery's without running the genny. Will finish hook-up this weekend and test out charging and such next week. Generator even fits in the compartment with the inverter installed so I got a back-up.
So if the inverter/solar/batterys do what I think they will I won't even need the generator anymore, we'll see.

I understand you did not run new wires from the alternator then as I assumed and we all know why one should never assume. So you're taking advantage of the positive and negative already in the seven pin plug. I guess you are keeping those two wires separated from any other connections in the TC other than your dc dc charger. That's good, that accomplishes what I was trying to say. It's still a long length of wire from the alternaror to the battery to the truck fuse panel to the bumper 7 pin, through the pigtail to the camper connection, and finally to the dc dc charger.
I opted for the 30 amp Orion with 4 gauge wires and a trigger/key on wire. My system produced 1.34KW at a peak of 431 watts 30 a.2 amps charging today. Fully charged by 12 noon. Gotta love the new system.