Abstract: A Depth of Charge (DOC) setting apparatus includes a charging and discharging unit for completely charging a battery to a set target voltage and discharging the completely-charged battery; a profile obtaining unit for obtaining a voltage profile for capacity and voltage of the battery while the battery is charged and discharged and obtaining a differential profile for capacity and differential voltage of the battery from the obtained voltage profile; and a processor for sequentially selecting any one of a plurality of preset voltages and setting the selected preset voltage as the target voltage and for obtaining a feature value for a target peak in each of a plurality of differential profiles and setting a DOC for the battery based on the plurality of obtained feature values.