Cold weather battery drain

[fwiw]

I borrowed my DIL's 2016 75 X and thought I noticed a 5% drop in charge after sitting outside for 5 hours in 30 degress temp.
So, I parked it outside last night, temp in the 20s. This morning after 16 hours there was a 9% drop. No checking during the night, no sentry, no 3rd party apps. Is this a normal drop for cold weather temps?

I've parked my Teslas without charging for longer periods of time with losses of less then 1% a day with normal temps (50 to 80 degrees). So, I'm concerned about her X unless this is a normal drop during cold weather.

 

[Bigriver]

Is this a normal drop for cold weather temps?

Some of the drop you saw was a temporary “loss” where a portion of the battery isn’t available due to the cold temperature. If you moved it into a warm temperature, the battery charge would then increase.

I have seen swings as big as 5%. 9% is outside of anything I have ever seen.

 

[shahryaran]

normal.
Same gas cars.
The ECU enriches the fuel to air ratio to warn up the engine quickly and therefore more fuel is consumed.

you can't defeat nature (physics).