I keep all my aircraft in my basement. All my rx batteries are not permanently mounted. When not in use, they are kept in a parts drawer. I keep them charged and cycle them once a month in the winter. They are all 1600 nimh packs. As far as my glow planes, I don't put after run oil in them. In my basement, I run a de-humidifier all year long. I haven't noticed any rust problems in the engines. I also run Morgan Cool Power as fuel. They state on the bottle that after run oil is not needed. If I kept them outside in a garage, then I'd probably use after run oil. I also cover the carbs with a rubber cap and the exhaust holes are plugged.

Dave...