NOVELTY - Fuel cartridge for use with a direct oxidation fuel cell comprises an exterior housing containing a fuel solution and having an exit port through which fuel is transported out of the cartridge; and a fuel delivery component saturated with fuel for delivery to the fuel cell as fuel is consumed by the fuel cell, and having a contact point extending through the exit port in the housing.    USE - The fuel cartridge is used with a direct oxidation fuel cell (claimed).    ADVANTAGE - The fuel cartridge provides fuel to the anode as it is consumed and reduces the risk of cathode flooding, while keeping the cost and complexity of the fuel cell to a minimum, thus resulting in more efficient fuel delivery and less waste of fuel including less fuel crossing over the membrane. Carbon dioxide is vented, thus a more efficient simpler fuel cell includes lower parasitic losses and is less expensive for mass manufacturing.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for:    (a) a direct oxidation fuel cell having an associated fuel source containing a fuel solution, which comprises an outer container; a membrane electrode assembly disposed within the outer container and including a protonically conductive electronically non-conductive membrane electrolyte having an anode chamber define between an anode face and an interior wall of the container and a cathode chamber defined between a cathode face and an interior wall of the container, and a catalyst coating disposed on the abode and/or cathode faces, such that electricity-generating reactions occur upon introduction of fuel solution from the associated fuel source, including anodic dissociation of the fuel solution into carbon dioxide, protons and electrons, and cathodic combination of protons, electrons, and oxygen from an associated source of oxygen to produce water; an anodic fuel receptor disposed in the anode chamber in contact with the anodic diffusion layer to allow fuel solution to be drawn from the associated fuel source in such a manner that the fuel solution is drawn into the anode chamber as fuel is consumed at the anode; and mechanism for collecting electric current provided in the electricity-generating reactions to provide the electric current to an external load; and    (b) a direct oxidation fuel cell system comprising a direct oxidation fuel cell, a fuel source, and fuel container and delivery assembly coupled between the fuel source and the direction oxidation fuel cell.    DESCRIPTION OF DRAWING(S) - The figure is a block diagram of a direct oxidation fuel cell system with which the fuel cartridge and fuel cell may be employed.