| 摘要 |
The invention provides a method of diagnosing a malfunction in an abnormal voltage detecting apparatus, which includes breaking an electrical connection between a secondary battery (100) and an abnormal voltage detecting apparatus (40, 31) and connecting the abnormal voltage detecting apparatus to a direct current voltage generating portion (20) that is different from the secondary battery (100), applying direct current voltage that has a predetermined voltage value that is outside of a normal voltage range to the abnormal voltage detecting apparatus (40) using the direct current voltage generating portion, and determining that there is a malfunction in the abnormal voltage detecting apparatus if the abnormal voltage detecting apparatus does not determine that the voltage is abnormal. |
