Confusion About 12V Disconnect

towpro wrote:
most installs the solar controller will charge the batteries even with the battery switch turned off.
The battery switch being off will remove all the load from the batteries and allow the solar to keep them topped off.

If you saw a spark, that is caused by load, so I bet you found your problem with the loose connection.

Ok so I did some tinkering with the SCC today

I tested the wires labeled “solar panel + and -“ and there is no voltage coming from them

I also tested the white and black battery wires (black was connected to battery + and white -)

there is full 13.6 volts coming from those wires (despite the fact the 12v disconnect was enabled)

I believe this implies there is a missing connection between the solar panels and the charge controller

I have an additional solar panel I need installed as well as my inverter so I’m going to take this to a local RV guy who’s interesting in installing my parts

it’s my first week in the RV and I’ve only begun scratching the surface with electrical and solar maintenance, as much as I want to save money, I think it’s smart I hire a pro. When I upgrade the system down the line maybe I can tackle that