A fuel cell power system includes a fuel cell which has an optimal voltage; an energy storage device having a nominal voltage substantially similar to the optimal voltage of the fuel cell; and an electrical switch that, in operation, selectively electrically couples the fuel cell and the energy storage device to charge the energy storage device. In general, the cover device fits over the lid and releasably grips the outer surface of the lid. Next, first-layer model outline data and first-layer character outline data are respectively obtained according to the first-layer model data and the first-layer character data. The hand assembly also has one or more posts positioned perpendicular to the surface of the hand assembly. The at least one fluid transport element is bendable about an axis substantially parallel to the longitudinal axis of the fluid storage element. The individual may be informed about the emergency situation via a user interface of the user device.