Setting up a new 24v system in a 12v RV and are new to this-- need info

@chrisski does your converter spark if their is nothing connected downstream?
Yes, with nothing at all connected to the 12 volt side. Whenever the 24 VDC circuit is made hot, it does spark. I contacted AIMS about this and who replied a little sparking is natural.

This does not spark nearly as much like a 3000 watt inverter, but sparked nonetheless so I included it on the pre-charge circuit.