Inverter plugged into battery when on shore power

I am asking because I just did a perminant inverter install. See my solar post.
My question is when I am at a campground with hook ups do I need to disconnect the inverter cables from the battery? Or can I just keep them connected.

lawrosa wrote:
yes it actually beneficial as you maintain the voltage...

??? Assuming we're talking inverter, and not inverter/charger here...

The inverter takes 12v DC from the batteries and provides 120 V AC which of course drains the batteries. How is that be beneficial to the batteries?

OP: As long as the inverter is off it wouldn't hurt anything, but there's really no reason to use the inverter while plugged in to shore power.

yes it actually beneficial as you maintain the voltage...