yeah there is no definitive information, they have mentioned to keep it plugged in when parked, but what actually happens when we don't leave it plugged in for long time?
I too have to leave my Model 3 for 6 weeks in an unheated garage with no access to a charger (no electric outlet accessible). I am in northern Vermont, so I am hoping there will be enough charge left in the battery to get me to my usual Level II charger, about 400 feet away, upon return. Otherwise I'll need to have my first experience with Roadside Assistance.
The Tesla Model Y will be fine. Just leave it with 70% to 80% state of charge if possible, turn off Sentry Mode and Summon (if equipped with FSD.) The Tesla Model Y will lose just 1% to 2 % of the battery state of charge per week if you turn off Sentry Mode and Summon.
If you eventually remember you can turn Sentry mode off using the Tesla phone app. If not then Sentry mode will cause the Tesla vehicle to remain powered on, use X miles of battery range per hour/per day until only 20% remains; then Sentry mode will be disabled.
Sentry is about 6% a day. Seven days will mean 42% for just Sentry. Add in 2-3% per day and you're still around 50%. However, if you park in an area where Sentry is not triggered you save a little power.
Because every time you check on your car - it wakes it from sleep. The longer it sleeps, the longer the battery will last!
Checking the app often may wake the car and sometimes drain the battery, this is just an assumption! If I had known that it would wake the car but won't drain the battery much, I would have definitely checked the app often
With Sentry the battery would drain a lot. Search this forum for experiences.
