An energy storage unit connection information acquiring apparatus that acquires information for connecting a plurality of energy storage units in parallel, each energy storage unit including a plurality of energy storage elements connected in series, the connection information acquiring apparatus comprising: a connectable range acquiring unit configured to acquire a connectable range by determining the connectable range, the connectable range being a range of energy storage units that can be connected in parallel among the plurality of energy storage units according to tolerance value data; and a charge/discharge information acquiring unit configured to acquire information for charging or discharging a connected energy storage unit group such that at least one energy storage unit outside the connectable range can be connected in parallel to the connected energy storage unit group, the connected energy storage unit group being composed of the energy storage units in the connectable range that are connected in parallel; characterized in that the charge/discharge information acquiring unit is further configured to: when the energy storage units included in the connected energy storage unit group have a voltage lower than a voltage of the at least one energy storage unit outside the connectable range, acquire information for charging the connected energy storage unit group such that the at least one energy storage unit outside the connectable range can be connected in parallel to the connected energy storage unit group; and when the energy storage units included in the connected energy storage unit group have a voltage higher than the voltage of the at least one energy storage unit outside the connectable range, acquire information for discharging the connected energy storage unit group such that the at least one energy storage unit outside the connectable range can be connected in parallel to the connected energy storage unit group. a connectable range acquiring unit configured to acquire a connectable range by determining the connectable range, the connectable range being a range of energy storage units that can be connected in parallel among the plurality of energy storage units according to tolerance value data; and a charge/discharge information acquiring unit configured to acquire information for charging or discharging a connected energy storage unit group such that at least one energy storage unit outside the connectable range can be connected in parallel to the connected energy storage unit group, the connected energy storage unit group being composed of the energy storage units in the connectable range that are connected in parallel; characterized in that the charge/discharge information acquiring unit is further configured to: when the energy storage units included in the connected energy storage unit group have a voltage lower than a voltage of the at least one energy storage unit outside the connectable range, acquire information for charging the connected energy storage unit group such that the at least one energy storage unit outside the connectable range can be connected in parallel to the connected energy storage unit group; and when the energy storage units included in the connected energy storage unit group have a voltage higher than the voltage of the at least one energy storage unit outside the connectable range, acquire information for discharging the connected energy storage unit group such that the at least one energy storage unit outside the connectable range can be connected in parallel to the connected energy storage unit group. when the energy storage units included in the connected energy storage unit group have a voltage lower than a voltage of the at least one energy storage unit outside the connectable range, acquire information for charging the connected energy storage unit group such that the at least one energy storage unit outside the connectable range can be connected in parallel to the connected energy storage unit group; and when the energy storage units included in the connected energy storage unit group have a voltage higher than the voltage of the at least one energy storage unit outside the connectable range, acquire information for discharging the connected energy storage unit group such that the at least one energy storage unit outside the connectable range can be connected in parallel to the connected energy storage unit group.