| 摘要 |
The residual power of a battery (35) can accurately be displayed in real time even in electronic equipment which has greatly variable current consumption. A calculator unit (32) in a battery pack (31) measures an electric current supplied from a capacitor unit in the battery pack (31) to the main body (10) of a note type personal computer. If the measured current value is within a preselected range, it is used to calculate the residual power of the battery (35). If the measured current value is out of the preselected range, the present operational mode of the main computer body is judged on a mode display data obtained from an operational mode control circuit (21) in the main computer body. A preselected current consumption corresponding to the judged operational mode is read out of a mode table (33) in the battery pack (31) and is used to calculate the residual power of the battery (35). The calculated residual power of the battery (35) is supplied to the operational mode control circuit (21) as residual power data which may be displayed on a sub LCD (11) in real time. <IMAGE> |
