Best Portable Generator for RV Use? February 22, 2024 at 1:39 pm #40083 matt.mcdonaldParticipant Joined: Feb 2024 Posts: 24 Likes: 11LikeUp1::If budget isnt a concern, I’d go with a dual fuel inverter, like the Champion 4650 or Predator 5000. Quiet, efficient, and can use propane or gasoline. But will set you back about a grand.