Thanks everyone for your suggestions...
Using the app means taking the phone out of your pocket. - something I want to avoid
Tesla remote with Siri Shortcuts is for Iphone only - I've got an android
The
special cable is too expensive - for me
Cable mod looks promising - I think it only needs a NC switch that adds a resistor in series to
unlock the charge port
NFC tags are useful - but you need to have your (android) phone open to use them
The
Tesla key fob looks promising - but it is something else to carry around
Anyway the reason I was looking into this is my Tesla Wall Connector button failed.
Fortunately Tesla are now going to replace it
See the whole story here:
Tesla Wall Connector - button not working - 2020.48.35.5
I did think about cutting the charging plug (see photo) so it would not be locked into the port. No one could steal a tethered cable and in the morning the car won't be charging so could just pull it out.
Lastly, why doesn't Tesla add a switch to the charging screen labelled
"unlock charge port when charge is complete, at this location".
That way the user can decide to use the function, or not, and it would work for home & other locations...