The NRGkick wall socket is permanently installed on the supply line and serves as a socket and interface for the NRGkick charging unit. A third-party connection is not possible, as the NRGkick wall socket features a proprietary connection interface. This ensures that no unintended devices can be connected to the socket. The NRGkick wall socket is fully automatically recognized and identified by the NRGkick charging unit, ensuring that the charging current does not exceed the value for which the wall socket is approved.