time2roll wrote:
'in use' is needed to connect the battery and keep it charged.
Don't forget to check the water level every 3 to 6 months.
This is true for many motorhomes, probably the majority, but not for all. Sometimes the converter is wired to the battery side of the disconnect switch rather than the house side. This is actually pretty easy to determine: if you have 12V power (i.e. the lights work) when plugged in with the battery disconnected, the battery is not getting charged by the converter but it is powering the house circuits. If you don't have lights, the battery probably is being charged by the converter, but you can't use the power for other things.
There's no reason to disconnect the battery when in storage if you're plugged in to shore power, so it doesn't particularly matter a great deal which way the RV is wired.