I just looked at the trip computer to see what the battery useage was and saw 60kWh. Maybe that does does calculate for climate control. This was actually a trip my wife did. When I drive my Model S I rarely use climate control. She has to have it going all the time.
Also, don’t have the latest version 9 for some reason. Had the car since January and they have not pushed it, so I cannot see instantaneous energy usage.
Since you weren’t doing the trip, are you 100% certain the trip was not split into two pieces? Were you looking at an actual resettable trip odometer or just the trip computer? Because the trip computer could have gotten reset if the car were stopped and parked briefly at some point during the drive.... And for the resettable odometer you’d need to be sure it was reset at 100% of course.
If all the data is good, it seems that you have 60kWh+14/310*75kWh = 63.4kWh usable battery which seems completely wrong, but there are additional caveats - see below.
I think it is pretty unlikely there is anything wrong with the battery...
Driving around 80 mph part of the trip and using the heater? Yeah, that's correct.
I understand
@TexasEV that you just want people to not worry about their battery capacity, but I feel like these responses need a little elaboration. The “no” was in response to fully charging/rebalancing, which is fair enough and certainly the correct answer.
As far as I can tell, the kWh that the heater/climate control uses IS included in the trip display as long as the car is moving. And the speed of travel is not relevant here; it doesn’t make a difference to the trip computer energy logging.
So, as I understand it, a full discharge from 100% to 0%, at around 50-60F external termperature, should show something quite close to 75kWh (the *approximate* battery capacity) on the trip meter EVEN if climate control is blasting. Is that not the case?
I am under this impression because the displayed Wh/mi on the trip meter so obviously includes climate control usage when you use it to monitor efficiency! So that usage must be included.
HOWEVER....
I don't think the trip counter measures energy usage while the car is in
I believe this is correct. If the car is left parked and preheating, then I believe the battery use during that time due to climate control is not counted. However I have not carefully studied the exact behavior, as it isn’t all that interesting, and I don’t take long trips. Someone should be able to confirm this definitively though. Not hard to check!
Anyway this is another possibility for why the OP’s battery numbers don’t seem correct.
@acevolt I think basically we’re looking at a situation where there looks like there is diminished battery capacity, but really just some of the used battery energy was not counted on the trip meter you quoted for one or several of the reasons above.
Does this seem plausible to you?