Charging method for an energy accumulator of a vehicle by means of a charging station, wherein the charging process of the energy accumulator is enabled if - there is a wireless communication between a vehicle-side communication device and a communication device of the charging station, - a parking brake of the vehicle is activated, characterized in that the charging process of the energy accumulator is enabled if - the vehicle body is connected to an electrical reference potential, in particular the ground potential, by means of an electrical connection between the charging station and the vehicle, and - contact between the charging station and vehicle is detected by means of a flow of current between the charging station and vehicle, wherein in order to ensure protection against direct contact the vehicle body is connected to the reference potential, wherein protection against direct contact is ensured by the formation of contact between a first contact of the charging station and the vehicle, wherein by means of a test current generated by the charging station, it is tested, via a second contact, whether the contact between the charging station and the vehicle by means of the first contact is certainly present by using the first contact for the reverse current, wherein the charging station has a current collector to which the individual contacts (21, 22, 23, 24) of the charging station can be connected by corresponding receiving contacts of the vehicle by lowering, wherein antennas, which have a directional characteristic and are arranged in such a way that wireless communication comes about only if the antennas are positioned with respect to one another in a certain orientation in which the vehicle is positioned at the charging station in which charging is possible, are used both at the charging station and in the vehicle. - there is a wireless communication between a vehicle-side communication device and a communication device of the charging station, - a parking brake of the vehicle is activated, characterized in that the charging process of the energy accumulator is enabled if - the vehicle body is connected to an electrical reference potential, in particular the ground potential, by means of an electrical connection between the charging station and the vehicle, and - contact between the charging station and vehicle is detected by means of a flow of current between the charging station and vehicle, wherein in order to ensure protection against direct contact the vehicle body is connected to the reference potential, wherein protection against direct contact is ensured by the formation of contact between a first contact of the charging station and the vehicle, wherein by means of a test current generated by the charging station, it is tested, via a second contact, whether the contact between the charging station and the vehicle by means of the first contact is certainly present by using the first contact for the reverse current, wherein the charging station has a current collector to which the individual contacts (21, 22, 23, 24) of the charging station can be connected by corresponding receiving contacts of the vehicle by lowering, wherein antennas, which have a directional characteristic and are arranged in such a way that wireless communication comes about only if the antennas are positioned with respect to one another in a certain orientation in which the vehicle is positioned at the charging station in which charging is possible, are used both at the charging station and in the vehicle.