New owner here, got my M3 LR RWD last week. I had my car charged up to 80% 260 mi at a supercharging station on Sunday before going home. I turned on the Sentry mode, then turned on walk-away-lock. I also turned on wifi for update. The car sat in the garage for a few days and was not used while we were getting wall connector installed. Today, the odometer mileage remain the same (51 mile) , but charge mileage is now 208 mile from 250 mile. Did the sentry mode use up battery or did I forget to turn off something? Just want to see if I miss anything. On the positive note, I did get 2019.16 update today when I check in to the car.