Since this post has gotten so far off track, let me help the OP with my own personal, incontrovertible experiences. My TT is in storage between uses with a battery disconnect switch in the "non-Connected" position. When I go back to pick my TT up, whether it has been two weeks or two months, I turn the disconnect switch on and everything works fine. Power tongue jack still works and lifts the tongue up into position for connecting to TV. When I get the camper home I plug it in and in short order the battery comes up to full charge.
I the battery out in the winter and put it in my basement, with no charger on it, for 4 to 5 months. When I put it back in the camper, everything again still works.
This has been my experience for 12 years and counting. Bought a new battery several years ago because I was going to be doing some boondocking and wanted to have a new battery on board. Normally I have electric at the campsite. If you plan on doing a lot of boondocking you will have different expectations and needs. If you are only concerned about storage (long term or short term) then your needs are minimal.
My experience with short and long term storage as noted above my differ from the rest of the world. It is however my experience and not the rest of the worlds. Your experience may vary.