Just got back from a 9 day vacation. Left my 2018 M3 LR RWD unplugged in a garage in SoCal with 75% and came back to 72%. I only checked on it twice throughout my vacation, closing the app immediately afterwards. Was NOT in Sentry Mode. Totally forgot to turn off Cabin Overheat Protection, but I don't think it activated at all, even though it was pretty hot the whole time I was gone. Overall, I'm pleased with the results.