Abstract: A charging unit including a charge contact and a spring in contact with the charge contact for charging a rechargeable device. The charge contact slidably engages with a charging surface of the rechargeable device and a spring connected to the charge contact applies a force to the charging surface as the charging unit receives the rechargeable device.

Abstract: An RF shielding liner. The RF shielding liner is configured to be installed or sandwiched between a lid and a frame of an electronic apparatus. The frame includes at least two compartments separated by partition walls. The RF shielding liner is made of conductive materials and includes a plurality of protrusions on at least one side. When the lid covers the frames to form an enclosure, the plurality of protrusions of the RF shielding liner are deformed against the tops of the partition walls, thereby forming a Faraday Cage necessary for preventing the escape of unwanted radio emissions.