A power connector facilitates mounting and repositioning an electronic device via a magnetic field. The power connector can include a receptacle surface comprising a curved surface operable to mate with a curved contact surface of an electronic device, and a device-coupling mechanism operable to hold the curved contact surface of the electronic device pressed against the curved surface of the power connector device, while an angle of the electronic device changes with respect to the power connector. The power connector can also include a power-transfer mechanism operable to transfer at least power to the electronic device, without an electrical wire between power connector and the electronic device, while the angle of the electronic device changes with respect to the power connector.