Charging contact for use with a battery powered electronic device

摘要

A battery powered device (100) utilizing a rechargeable battery (135) comprises a ball bearing (300) having a first diameter for receiving a current and a housing (200) having an opening (405) formed therethrough in which the ball bearing (300) is situated, wherein the opening (405) has a second diameter of less than the first diameter. The battery powered device (100) further comprises a spring (305) situated in the opening (405) in contact with the ball bearing (300) and a spring cap (310) fastened to the housing (200) for forcibly holding the spring (305) in contact with the ball bearing (300). A conductive element is coupled between the spring and the rechargeable battery such that the current received by the ball bearing (300) is supplied to the rechargeable battery (135) via the spring (310).