I just use the 7 pin RV plug. But I have a 20 amp circuit breaker on the 12V feed. That way if either battery starts drawing too much, it will just trip and reset as necessary. That is how i wire al the trailers I put a winch on. No problems in 10 years

 

My 9k won't trip the breaker I have, but the old 12k will. I really like the Anderson plug setup because I don't need to open hood for jumper cables, my plow has the same connection on the front with a solenoid disconnect, and the rear crane/boom attachment uses the rear plug. It's quite versital.
My camper has some sort of charge controller for those batteries, I've never messed with that setup.
I try to overbuild my work stuff. If it fails once (usually when I need it the most) it irritates me and gotta build it bigger/badder next time.

 

I installed the 203* thermostat last night. It now sits at the R and gets to the M under load. Seems to be quieter and a little more uniform. Just thought I'd update.

 

I also have the 203 stat (about 4 years now) and agree with your observations. It's a timing thing. Here is a thread I did awhile back showing showing the EOT vs stock water temp gauge that you might find interesting ...

https://www.ford-trucks.com/forums/1...servation.html

 

Thanks Jim. Did you notice any difference in operational characteristics? MPG gains or such? Mine seems to be happier, if that makes sense.

 

Byron, I'm sure it helped a bit but don't tract MPG. Last time I checked was 15-17 with my crew cab beast. Once EOT gets up to >= 190* the truck just runs better, quieter injector wise, in a good way and has more go power from the stop light.

 

Thanks Jim. I'd say those numbers are pretty good. I hope I see the higher end of that Thursday and Friday driving across country. If definitely sounds different...a different kind of clackety.