The present invention relates to a battery management device and, more specifically, to a battery management device that changes a control condition according to a degradation pattern in a charging state of a battery cell. According to one aspect of the present invention, the degree of degradation acceleration of the battery cell as well as the degree of degradation of the battery cell are estimated, and therefore, there is an advantage in that prediction of a future degradation state of the battery cell can be more accurately made, as well as a current degradation state of the battery cell being more accurately estimated.
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