| 摘要 |
In a battery pack including a battery composed of a plurality of secondary calls, a control device for a protection circuit of the battery from over-charging/discharging is disclosed. A cell voltage detector detects cell voltages of the second cells, respectively, and a battery voltage detector detects a battery voltage of the battery. A controller activates a circuit breaker to break an input/output circuit of the battery when the battery voltage does not match a total cell voltage obtained by adding the cell voltages.
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