| 摘要 |
PROBLEM TO BE SOLVED: To dispense with install action of a direct-current-to-direct-current converter for charging a main battery apparatus, separately from a direct- current-to-direct-current converter for charging an auxiliary battery apparatus, when each cell of an electrical-double-layer capacitor battery constituting the main battery apparatus is charged uniformly from the auxiliary battery apparatus. SOLUTION: A direct-current to direct-current converter for charging each cell 41, 42, 43, etc., of the electrical-double-layer capacitor battery constituting the main battery apparatus 4 uniformly, and the direct-current to direct-current converter for charging the auxiliary battery apparatus 8 are the same direct- current to direct-current converter 17-19, and moreover it is a directional type. |
