Airport car park battery killer [resolved - sentry mode is on]

[Tezza]

Hi all. Last July I left the Tesla model 3 (2021) in a sunny airport car park in an England. It dropped loads in battery over a few days and I realised I’d left cabin overheat protection on. MY mistake. So this July for the holiday I ensured the setting was off when I left the car, and the general climate control was off when I left the car. I’ve just had an alert sentry has turned off because it’s hit 20% where I left it as 69% 5.5 days ago. I won’t get back to the car for another two nights. Now anxious what % it will be at and why it’s lost 49% in just a few days. What can I do? I can see it’s 50+ Celsius inside the car, is that killing the battery? Is it something else?
Thanks for any helpful tips.

 

[EVRider-FL]

Did you disable Sentry Mode? That uses 1-2 miles of range per hour.

 

[Tezza]

Did you disable Sentry Mode? That uses 1-2 miles of range per hour.

I just read that’s the reason in another post, wow, thanks EVRider-FL.

It reassures me it will still be about 20% when I get back not keep plummeting.

I can’t believe active cameras use so much %.

I definitely would have turned it off. My business just leases it, it’s not even mine to lovingly care about! Well, now I know.
Many thanks.

 

[EVRider-FL]

I can’t believe active cameras use so much %.

They don’t. Most of the energy drain is coming from the AP computer, which is continuously analyzing the camera inputs looking for threats. But the fact that Sentry Mode prevents the car from sleeping is a contributing factor too.

 

[Tha_Ape]

I guess a lot depends on where you live, but I find it wildly more convinient, cost effective, and less stressful to take a cab/ ride share to/from an airport if I'm gone for more than a day or 2.

 

[herrlich98]

Leaving cabin overheat protection on is *not* a huge issue. It would be better to turn it off but it only stays active for the first twelve hours so the downside of that issue is limited.

I 100% agree Sentry Mode is a battery killer for long term parking until it gets disabled at 20%. I hope most airports these days have a Supercharger within the range of a ~20% battery.