[HighPlainsCruiser]

Thought I'd report that Princess just sat in a parking lot near the airport in Portland Oregon for 34 days, car alarm LED dutifully blinking and started up with no problems. Probably made no difference at all but I made sure the radio was turned off, the heating system turned off and the headlights flipped one notch to the right off automatic. As far as the dealers saying that previous trips were too short to charge the battery, never heard of such a problem before on any car though I'm not a mechanic- I thought the alternator was constantly charging the battery, don't quite see the big advantage to the brake regeneration, if there are such problems it's not doing much.
BTW, had a Chevy Envoy rental. When you opened a front window a wind oscillation was set up that reverberated through the cabin, the only way to stop it was to open another window. It drives and parks like a tank.