Från https://www.tesla.com/support/improving ... t-charging:
When drivers navigate to a Qualified Third-Party Charger, the battery automatically preconditions to arrive with an optimal temperature, reducing the amount of time it takes to charge.
Qualified Charging Station Requirements
To be considered a Qualified Charging Station, it must meet these conditions over a 60-day period:
At least one compatible charging connector
Frequently used by Tesla drivers at least once every four days
Average charge success rate is 90% or higher
To detect inoperable chargers quickly and provide the best experience for our customers, stations will be removed from Tesla’s list of Qualified Charging Stations if any of the following conditions are met over a 14-day period:
No charge sessions detected
Average charge success rate falls below 70%