A method is generally described which includes operating an electrical energy storage device or an electrochemical energy generation device includes providing at least one thermal control structure formed of a high thermal conductive material. The high thermal conductive material having a high k-value, the high k-value being greater than approximately 410 W/(m*K). The thermal control structures are disposed adjacent at least a portion of the electrical energy storage device or the electrochemical energy generation device. The thermal control structures are configured to provide heat transfer away from the portion of the electrical energy storage device or the electrochemical energy generation device. The method also includes configuring a controller with a control algorithm to control the actions of a controllable fluid flow device as a function of a mobile device states. The mobile device using electricity from the electrical energy storage device or the electrochemical energy generation device. The electrical energy storage device or the electrochemical energy generation device is configured to provide electrical current and the controllable fluid flow device providing a fluid to the at least one thermal control structure. The method also includes accessing a processor of a mobile device. The processor is configured to determine at least one mobile device state. Further, the method includes providing an electrical characteristic sensor coupled to the power source and is configured to sense at least one electrical characteristic of the power source and to provide a signal representative of the at least one characteristic to the controller.