NOVELTY - The system has a rebuild candidate determining unit (430) to determine whether a retrieved assembled battery is a rebuild candidate based on information about assembled battery. A single cell amount determining unit (440) determines an amount of rebuilding-usable single cells in a rebuild-candidate assembled battery. An assembled battery demand information acquisition unit acquires an amount of rebuilding-required single cells required to rebuild new assembled battery. A determination unit (470) determines whether to send rebuild-candidate assembled battery to rebuilding process.    USE - System for reusing assembled battery in hybrid vehicle and electric vehicle.    ADVANTAGE - The reduction in the amount of the assembled battery is sent to the inspection process that results in cost reduction in rebuilding the assembled battery. The amount of the rebuilding-required single cells is acquired by the assembled battery demand information acquisition unit to send appropriate amount of assembled batteries to the rebuilding process, thus as the result only minimum amount of assembled batteries are used for rebuilding in order to reduce the cost associated with rebuilding of assembled battery. The battery reusing system and apparatus reduces the cost required to rebuild assembled batteries. The assembled battery reusing system and apparatus used in the system is determined whether to send the assembled battery to the rebuilding process based on the amount of rebuilding-usable single cells included in rebuild-candidate assembled battery and amount of rebuilding-required single cells. The minimum amount of the assembled batteries are sent to the rebuilding process, thus the number of man-hours of disassembling the assembled batteries in the rebuilding process is minimized and work in the rebuilding process is efficient.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for an apparatus used in an assembled battery reusing system for reusing an assembled battery.    DESCRIPTION OF DRAWING(S) - The drawing shows a block diagram of a sorting apparatus.    Identifying unit (410)    Rebuild candidate determining unit (430)    Single cell amount determining unit (440)    Storage unit (450)    Determination unit (470)