stand by lossess
 

Does the e-tron have standby battery drain that reduces range while parked and unplugged (not charging). For instance, parked in long term airport parking. Early Teslas were known for high battery drain standby losses, to keep the cars electronics awake to receive over the air updates. I think they have reduced this by putting the car into a sleep mode. much like a PC. I can find nothing on this topic, but owners can tell by simply recording range while unplugged overnight. I'm guessing battery thermal management may use considerable capacity in extreme temperature environments.

Haven't seen any impact on the battery while parked

I do see a slight battery drain. When not used for days. I returned my car to dealer for recall on Monday and the battery had 91 miles. Today, Friday it shows 89 miles. A 2 mile drop over 5 days....not too much loss.