Patent ID: 7271567

Claim:
A hydrogen-based refill unit for use in a hydrogen-based fuel cell management system wherein the management system includes a (1) hydrogen-based fuel cartridge having (i) a fuel vessel containing a hydrogen-based fuel and (ii) a memory device to store at least one operating parameter of the hydrogen-based fuel cartridge, and (2) a power unit, separable from and adapted to Couple to the hydrogen-based fuel cartridge, including a hydrogen-based fuel cell, adapted to receive the hydrogen-based fuel from the hydrogen-based fuel cartridge and generate electrical power therefrom, the hydrogen-based refill unit comprising: a refill unit valve assembly, adapted to couple to the hydrogen-based fuel cartridge, to provide exchange of hydrogen-based fuel with the fuel vessel of the hydrogen-based fuel cartridge; and control circuitry to determine at least one operating parameter of the hydrogen-based fuel cartridge and to store data which is representative of the at least one operating parameter of the hydrogen-based fuel cartridge in the memory device of the hydrogen-based fuel cartridge.