It kept going through my mind. Did we check everything related to power when we put the coach into storage for the winter?
And, specifically, did I check the house batteries for water level?
We went out to the storage facility and had an opportunity to look at all of the house batteries. the levels looked okay but I think I will need to go back and make sure that I add distilled water up to the level of the protrusion of the valve well. There is water covering the plates of the batteries themselves so they should be okay for another few weeks.
Trojan has a good video that provided me with a lot of information about deep cycle batteries. Looking back, I think I should have ordered AGM batteries for the coach. They do not require any maintenance.