[scottz]

Originally Posted by watsonjones

Scottz, thank you for the picture and especially the circuit diagram which is very useful. One of the reasons that I am thinking of using an additional backing board is that I am sure I will end up adding to and changing my cabling circuit over the years and if I use a backing board and need to make a significant change I can just make a new backing board without leaving a bunch of holes in my battery compartment bulkhead.
A couple of follow on questions:
1. Do you recall the size of bus bars you used (3/8 or 5/16) and what gauge wire are you using between the bus bars?
2. What batteries do you have and do you store them in the battery compartment (I know some people with Lithium banks move them somewhere else). I still have the original batteries that came with the rig but am looking to replace them at some time.
3. do you have a battery terminal disconnect like this one for use when storing theRV for short periods? (GraceMe Battery Master Disconnect Cut Off Switch 12V 24V Negative Post Marine Boat Car Rv Vehicles Battery Saver https://www.amazon.com/dp/B074J5W7TX...2emEb9TYWXXC)?
We do not need or have solar yet but envision adding it within the next year or two.
Thanks, David
p.s. I also plan to copy your idea of marking the hydraulic fluid reservoir levels.

The four bus bars on the left are the mains with four 3/8" lugs each.
https://smile.amazon.com/gp/product/...?ie=UTF8&psc=1

The two on the right are for smaller feeds.
https://smile.amazon.com/gp/product/...?ie=UTF8&psc=1

If you get these off Amazon, read the reviews. The first thing you do is replace the 3/8" x 1 1/4" bolts they give you. The ones they supply are junk or the nuts/bolts are mismatched; anyway, they will seize the first time you tighten them; trash them.

I use 1/0 welding cable (more flexible than standard stranded cable) for battery feeds & jumpers, inverter feeds, bus bar connectors, etc. and #6 to the breakers (except the generator start breaker).

I had AGM's (3 @ 12VDC) but changed to lithium. Yes, they are in the battery compartment.

This is the disconnect I used.
https://smile.amazon.com/gp/product/...?ie=UTF8&psc=1