Congratulations and welcome.
When you are connected to your tow vehicle (TV) you can charge your house battery via the 7 pin umbilical cable.
You can watch the voltage increase on the level up control panel when you connect the cable with the engine running. I have an F350 and have to press the brake pedal for the relay to activate the charging circuit. I'm not sure if Chevy or Ram have the same thing.
Good luck and safe travels