Hopefully this won't be needed soon and all cars and chargers will support Plug & Charge (ISO 15118)[0] after this annoying transition period.
> The user-convenient and secure Plug & Charge feature that envisioned with ISO 15118 enables an electric vehicle to automatically identify and authorize itself to a compatible charging station on behalf of the driver, to receive energy for recharging its battery. The only action required by the driver is to plug the charging cable into the EV and/or charging station, because the car and the charger identify themselves to each other by exchanging certificates which were provided beforehand via a certificate pool to facilitate payment.