Disclosed are a fuel cell system, and a method of driving the system. The assembly includes a breast plate that is supported by a shoulder harness, and a storage box which is mounted to the breast plate so as to be pivotable from a vertical stowed position in which the top of the box lies against the breast plate, to a horizontal position in which the access opening of the box is disposed upwardly. An advertiser can sponsor the term, for example, by having a banner ad automatically pop-up on a keyword search.