A charger for charging an electric vehicle, comprising: a movable plug assembly comprising a downward facing plug that is connectable to an upward facing socket on top of the electric vehicle, the moveable plug assembly being mounted above the electric vehicle such that the movable plug assembly can be moved to be above the electric vehicle when the downward facing plug is not connected to the upward facing socket; a downward facing image capturing device; and a controller connected to the movable plug assembly and the downward facing image capturing device, and arranged to: control the downward facing image capturing device to capture at least one image in respect of the upward facing socket; and when the downward facing plug is not in alignment or connection with the upward facing socket, control a movement in respect of the movable plug assembly based on the at least one image, in order to enable the downward facing plug to move from above the electric vehicle downwards into alignment or connection with the upward facing socket.