Not entirely true
Just tried mine now after completing a 100% charge and a Balance
No timer involved on the charger or car though, as its a work charger.
Preheat worked fine via the app with the Charger Cable still connected but not charging.
even changed the heat from 17 deg to Max via the app and the fan kicked into another gear whilst i was stood nearby.
What I don't like is the car lit up like a xmas tree while its doing it
View attachment 11698
Side lights and rear lights on, kind of a silly idea, I know they're LED so will be low power draw but even so, it will attract attention.
The charger also kicked back in once again, when the pre heat was started
Pulling about 3kw according to the app.
So it does seem to work ok
on mine anyway
SE SR