| 摘要 |
A detecting method for detecting an internal state of an inspective rechargeable battery (Ba), said internal state including a deterioration state, an electricity storable capacity, a remaining capacity, and an internal resistance of said inspective rechargeable battery (Ba), comprising: (1) a step in which basic data (BD) of characteristics of a normal non-deteriorated rechargeable battery (Bn) as a reference rechargeable battery for said inspective rechargeable battery (Ba) are provided; and (2) a step in which for said inspective rechargeable battery (Ba), a voltage value or/and a current value thereof are measured, and the measured result is compared with said basic data (BD) obtained in said step (1) to judge whether or not said inspective rechargeable battery (Ba) is of a deterioration mode and to detect the internal state thereof.
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