Maybe this is useful for you or maybe not.
Parked the 2020 Y (around 20K miles) at the Denver Airport for 10 days. Temps ranged from around 32F at dropoff, to -24 at one point, to 50, then back into the 30's.
63% battery on 12/18 when parked the car.
24 hours later, it read 53%. I contacted...