I have a Trik-L-Start engine battery charger....siphons off a small charge from the house batteries. So engine battery voltage is and has been good while I've been sitting.
I have a magnet in the doorway. Seems to be working, as I wrote, I tested the steps a few times in and out.
So, dougrainer, sounds like you're saying my experience with my steps is nothing to worry about...just a system memory loss. I'll go with that unless I continue to have a problem as I do my summer traveling when I don't sit for long periods.
Thanks for your replies!