It seems you use your Use/Store (battery disconnect) switch much more than I do. I usually leave mine in Use (connected) unless I will be disconnected from power for days. When the RV is sitting at the house between trips it is plugged in and the battery is connected (Use).
If you do not have a 3 or 4 stage converter you will have to check the battery often to make sure the water doesn't boil away. Start off checking it every 2 weeks and change the interval when you learn how quickly the water evaporates.