作者: Adam Benzion , James John Wojcik , Abhishek Joshi , Jan Ray Hofland , Brian Scally.
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摘要: A protective case for an electronic device is provided. The includes interface connecting to a rechargeable battery, group of display elements, electrically interfacing with the device, and external interface. also electrical circuitry configured receive power from source through interface, exchange communications determine charge rate battery based on information received in communications, supply portion if condition satisfied.