| 摘要 |
A capacity detector of a cell used as a source of power for a watch, camera or any other portable implement, wherein a resistive load is connected in series through a switch; the switch is opened immediately after a prescribed length of time; a speed of the cell voltage restoration is calculated which is required for a cell voltage restored after the opening of the switch to be brought back to a prescribed reference level; and the remaining capacity of the cell is numerically determined from said calculated length of time.
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