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Heating case for a portable electronic device

A case for an electronic device includes a housing for enclosing the electronic device and a removable heating device that may be placed in or on the housing for warming the electronic device without electricity from the electronic device. The removable heating device includes a pouch enclosing a supersaturated solution and a metal disk. The super saturated solution in the pouch undergoes an exothermic reaction when the disk is actuated.

Coulter, Joshua Oliver↗