A power supply device for a vehicle, in particular for a utility vehicle such as an electric bus or an electric heavy goods vehicle, wherein the power supply device includes at least one contact head that can be brought in contact with a docking station to establish an electrical connection, and includes at least a first pivot arm that is connected to the at least one contact head, where the at least first pivot arm is connectable to a vehicle so as to be rotatable about a first axis and a second axis that extend at an angle from one another, where the first axis extends parallel to a transverse vehicle axis, and the second axis extends parallel to a longitudinal vehicle axis so as to allow for more flexible movability of the contact head.