No, a charging session must always be stopped in the same way it was started. This can only be done via the app on your smartphone (if you used it to start the session) or with your charge card (if you started the session with it). It is also possible to end the session by unlocking the car and removing the charging cable from the car. This way, the session will end automatically, but this is impossible without the car key. Only the operator of the charging point can stop your charging session, usually remotely, if you need customer support or are experiencing technical problems.