NOVELTY - The hydrogen fuel cell system comprises a fuel cell (110), a fuel cartridge (120) including an overmolded face seal gasket that provides an offset injection point on the fuel cartridge, a reactant fuel material (177) provided in the fuel cartridge, and a water feed tray (130) connected to the fuel cartridge that provides an aqueous solution into the fuel cartridge to react with the reactant fuel material to develop hydrogen for the fuel cell. The overmolded face seal gasket includes one of a fuel cartridge input port, a fuel cartridge output port and a hydrogen output port.    USE - The hydrogen fuel cell system is useful for applications including portable power electronics, stationary power generation, lighting, back-up power, consumer electronics and personal mobility devices such as electric bicycles and landscaping equipment.    ADVANTAGE - The system provides more uniform reactivity and heat distribution in the fuel cartridge and controls reaction conditions including chemical and physical nature of the reaction products and by-products.    DETAILED DESCRIPTION - The hydrogen fuel cell system comprises a fuel cell (110), a fuel cartridge (120) including an overmolded face seal gasket that provides an offset injection point on the fuel cartridge, a reactant fuel material (177) provided in the fuel cartridge, and a water feed tray (130) connected to the fuel cartridge that provides an aqueous solution into the fuel cartridge to react with the reactant fuel material to develop hydrogen for the fuel cell. The overmolded face seal gasket includes one of a fuel cartridge input port, a fuel cartridge output port and a hydrogen output port. The water feed tray includes a bellows assembly that holds the aqueous solution. The bellows assembly self-pressurizes the aqueous solution to be provided to the fuel cartridge. The fuel cell system further comprises: a spring inside the bellows assembly that pressurizes the aqueous solution to be provided to the fuel cartridge; a spring outside the bellows assembly that pressurizes the aqueous solution to be provided to the fuel cartridge; a check valve (140) that regulates aqueous solution flow from the bellows assembly to the fuel cartridge based upon pressure of the aqueous solution from the bellow assembly and pressure of the hydrogen developed in the fuel cartridge; a poppet that prevents the aqueous solution from traveling to the fuel cartridge when the poppet is in a locked position, enables flow of the aqueous solution, actuates the fuel cartridge, and allows the reaction to start when placed in an unlocked position; and a rotatable actuator that selects a segmented section of the fuel cartridge to which the aqueous solution is to be provided. The spring inside the bellows assembly pushes the aqueous solution to the fuel cartridge and pulls the aqueous solution to the fuel cartridge. The check valve regulates the pressure of the provided aqueous solution as a steady decay associated with the bellows assembly pressure, prevents hydrogen gas from deflecting the bellows assembly and dampens the pressure of the aqueous solution initially provided to the fuel cartridge to start or restart a reaction. The fuel cartridge is segmented into sections. An INDEPENDENT CLAIM is included for a method of controlling a hydrogen fuel cell system.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of a hydrogen fuel cell power system.    Fuel cell (110)    Fuel cartridge (120)    Water feed tray (130)    Check valve (140)    Reactant fuel material. (177)