| 摘要 |
PROBLEM TO BE SOLVED: To facilitate an operation by physically relating a charging-related fuction displayed on a screen to a switch for the operation related to the function. SOLUTION: A battery remaining capacity display part 47 as the charging- related function the of a battery 5 and a charging reservation state display part 50 are arranged so as to be displayed in the up and down directions on the left side of a display screen 22. Moreover, a charging reserving button 23 is arranged on the lower side of the charging reservation state display part 50. In this device, the colors of the color of parts from '2' to 'FULL' of bar graphs in the battery remaining capacity display part 47 and the color of characters in the charging reservation display part 50 and the color of the charging reserving button 23 are made to be the same color, for example, a green color.
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