| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an efficient fuel cell device, of which a residual quantity of a fuel can be detected in a simple structure, and of which a fuel container can be easily exchanged by a user even when a residual quantity of the fuel becomes small. <P>SOLUTION: The fuel cell device is equipped with not less than two fuel containers having a residual fuel quantity detecting function, and the fuel container used when driving a load can be selected. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
