All,
I have a correction to the correction.
I am on vacation today in the RV and thought I would call Winnebago to get the details.
Per Winnebago (one phone rep anyway), I was right about my assumptions or noted experience with Switch being foolproof if you connect Shore power.
1. It is NOT possible to turn off the charging to the House batteries of my 29VE when Shorepower is connected.
2. With Shorepower; 110vAC goes to the entire coach and no switch will stop or turn off.
3. The converter when it has 110vAC input power works in 3 stages and sends amperage to the House batteries based on voltage at the batteries.
4. They state the voltage measurements may look erratic at times due to this staging and delta of voltage at the battery versus voltage from the battery.
But if the shorepower is connected the charging is on.
With that said, Winnebago says
if you plan to leave RV unattended for anything longer than 2 weeks. You should...
1. Disconnect Shore power
2. Turn Disconnect Switch to Off
(This scenario is only time I would bother with switch)
There are no relevant parasitic drains to be concerned with on this coach unless coach is wired improperly, or aftermarket add on direct to the battery. This also eliminates Sulfate concerns.