Charge/discharge control device, charge/discharge control system, and charge/discharge control method

A charge and discharge control system, comprising:

• a remaining capacity estimator configured to estimate a remaining capacity of each of a plurality of batteries configured to be removably connected in parallel to a power consumption element;
• a required power input component configured to receive a request for power to be supplied to a drive source of the power consumption element;
• a priority setting component configured to set a priority of use of the plurality of batteries, when supplying the power requested via the required power input component, on the basis of the remaining capacities of the plurality of batteries estimated by the remaining capacity estimator;
• and
• a battery use decision component configured to decide on one or more of the plurality of batteries to be preferentially used, on the basis of the priority set by the priority setting component and the power requested via the required power input component, such that the remaining capacity of the one or more batteries decided to be preferentially used is reduced and the remaining capacity of the plurality of batteries is distributed unevenly.

A charge and discharge control method for controlling the charging and discharging of a plurality of batteries configured to be removably connected in parallel to a power consumption element, the charge and discharge control method comprising:

• receiving a request for power to be supplied to a drive source of a power consumption;
• acquiring a remaining capacity of each of the plurality of batteries;
• setting a priority of use of the plurality of batteries, when supplying the requested power, on the basis of the acquired remaining capacities of the plurality of batteries;
• and
• deciding on one or more of the plurality of batteries to be preferentially used, on the basis of the set priority and the requested power, such that the remaining capacity of the one or more batteries decided to be preferentially used is reduced and the remaining capacity of the plurality of batteries is distributed unevenly.