If you're not needing a ton of electricity, that would be fine, but unless you have an inverter you won't have 110V AC power but you will have 12V from your house batteries. If you're only staying one night and then back on the road the next morning, as long as your charging system is working properly the RVs charging system should charge up your house batteries when you drive down the road.
Camp grounds have quiet hours that usually start somewhere between 9 & 11pm and last until after daylight hours. During those quiet hours, you aren't allowed to run your generator.
I apologize if you already know this, but I know you're new to all of the RV stuff and I'm not sure how familiar you are with electrical needs and sources.
Doug
