Getting Batteries and Propane Off Tongue

Your post brings up many questions as to what you are trying to accomplish. More information would help us to answer your questions rather than speculate about what it is you are trying to do. I am a convert from Class A to TT I really like being able to fill my propane by taking the bottles off. I have 2 30 lb. I am in central Fl. for the winter it has been chilly here and I have run the furnace quit=e a bit the 2 30 lb. last 3 weeks in the chilly weather we also cook with the propane and heat water. I have an added battery on the tongue of my TT . I have enough truck to handle way more than I tow including a lot of paylaod capacity. Hope this might help as I have no idea about how I would relocate propane and I would not spend the money on AGM batteries.