POWER CONTROL DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a power control device that equalizes a degradation state on a plurality of secondary batteries.SOLUTION: A power control device includes: a plurality of secondary batteries 2 that are connected to an electrical apparatus 4 and that are controlled and switched between charged and discharged states independently of each other; a fuel cell 3 that is connected to the secondary batteries 2 and that charges each of the secondary batteries 2; control means 14 that sets discharging objects and charging objects out of the secondary batteries 2 and that controls the states of discharging from the discharging objects to the electrical apparatus 4 and of charging from the fuel cell 3 to the charging objects; determination means 11 that determines relative degradation level of each secondary battery 2; and switching determination means 18 that changes discharging objects and charging objects on the basis of the relative degradation level as determined by the determination means 11.