[Hblick48]

My rig did not come with a battery disconnect so I installed one in line going from batteries to the converter/distribution panel near that unit. I also installed 300 watt solar setup. Slide hydraulic pump is connected directly to batteries, so it is always connected to 12 volts.

When I am plugged into shore power or unit is in storage, disconnect switch is
turned off isolating batteries. I let solar charge controller do its thing to keep batteries charged.

I've never had any converter issues without battery connected. It just powers 12 volt side with no issues. Didn't make sense to have both solar and converter charging batteries simultaneously. I believe solar charge controller and converter sense battery voltage and adjust their output accordingly.

Been doing this for years without any detrimental effect to converter.