Battery Management Apparatus and Operating Method Thereof

A method of battery management, the method comprising:

• retrieving, from a memory, a cumulative balancing time of each battery cell of a plurality of battery cells included in a battery pack;
• determining a median of the cumulative balancing time of each of the plurality of battery cells;
• determining whether the battery pack is abnormal by comparing the median with a first reference time;
• based on determining the median exceeds the first reference time, comparing the cumulative balancing time of each of the plurality of battery cells with a second reference time;
• identifying , based on the comparison to the second reference time, at least one abnormal battery cell of the plurality of battery cells;
• and
• outputting a signal to a target device wherein the signal identifies the at least one abnormal battery cell.

A non-transitory computer readable storage medium storing instructions that, when executed by one or more processors, cause the one or more processors to:

• compare a median of a cumulative balancing time of each of a plurality of battery cells included in a battery pack to a first reference time;
• determine, based on the comparison, whether the battery pack is abnormal, wherein the battery pack is abnormal when the median of the cumulative balancing time of each of the plurality of battery cells exceeds the first reference time;
• identify, based on determining the battery pack is abnormal, at least one abnormal battery cell of the plurality of battery cells based on determining the cumulative balancing time of the at least one abnormal battery cell is less than a second reference time;
• and
• output a signal to a target device wherein the signal identifies the at least one abnormal battery cell.