I'm still on 48.35.5 and my car has been awake all week. No 3rd party apps or services, sentry off, no apple watch or any of the other usual suspects for keeping the car awake.
Interestingly the car thinks I'm at my neighbours house according to the address.
Mine does a 6 hour stretch every so often, then back to 15mins/24hours. Think maybe it's topping up the 12v battery every so often, or something like that.
I'm not seeing the 15 minute online, but the 6 hour sessions are uncannily precise. 1st one is 6 hours 3 mins and 2 seconds. Second session is 6 hours 3 mins and 4 seconds. I may upgrade to 4.6 to see if that changes anything. I'm sure that'll be the first thing they tell me to do.
View attachment 640948
My sleeps seem to be longer, but I'm still getting the 6 hours wakes. I've been using the car a bit more, so not had a chance to leave i as long. One thing I noticed is when the car goes into it's 'falling asleep' pattern if I go into the Tesla app and then come out, it falls asleep fairly quickly afterwards. When I tried this the online time was only 1 hour as opposed to the normal 6. I didn't manage to record how long between coming out of the app and the car falling asleep, but it was much quicker than normal. Will probably have to wait until the weekend to get another chance.
Popcorn at the ready.I've been using the car quite a bit more recently too, and I've not had a 6 hour waken since immediately following the update to 2021.4.11 last Thursday, but I did stay overnight at my MIL's on Saturday (support bubble duties!). Car has currently been asleep for 18hrs 9 mins and I'm not planning on using it today, so will see what it does around 18:30 tonight!
Popcorn at the ready.
I'm not convinced anything we do is changing the behaviour. The way our cars behave so similarly makes e think it's something at their end. Going to try to start the app when i see it going to sleep to see if I can force it to sleep quicker. It's almost like it's not disconnecting from the server properly and is being forced off by a timeout. Well that's my latest theoryVerdict is different behaviour than I've observed previously! Car woke up after 21 hours as opposed to the expected 24, and then was awake for 4 hours which is not a duration I've seen before. Overall the random extended awakes, whether 4 or 6 hours do seem to be consistently interspersed with long sleeps (and some daily wakes are only 15 minutes too), so overall loss has averaged not much more than 1% per day for a couple of weeks now, ever since the upgrade from 2020.48.35.5, which I think coincides with what you were seeing too. I might even change home location back to the correct one now from the Tesco car park