This publication describes systems and techniques directed to wireless charging through a collapsible mobile device grip. A receiver (Rx) coil that is attached to a collapsible cable is affixed inside the top, planar surface of the collapsible mobile device grip. The location of the Rx coil is such that the receiver coil can be placed proximate a complementary transmission (Tx) coil disposed inside a top, planar surface of a wireless charging pad. A collapsible cable connects the Rx coil to a pogo-pin interface, which can be integrated into a backplate of the mobile device or into a casing of the mobile device, to electrically couple the Rx coil to a charging system of the mobile device.
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Gilbert, Christina, "Wireless Charging Through a Collapsible Mobile Device Grip", Technical Disclosure Commons, (September 13, 2019)