Awesome work with the supercharger! 👌

usually chargers can be mapped as amenity=charging_station and then many pieces of chargers as man_made=charge_point, but there was nothing wrong with yours :-)

https://wiki.openstreetmap.org/wiki/DE:Tag:amenity%3Dcharging_station

https://wiki.openstreetmap.org/wiki/Tag:amenity%3Dcharging_station/Tesla_Motors