A battery control apparatus comprising: a controller configured to control charging and discharging of a battery, wherein during a use period of the battery, the controller is configured to: estimate a state of health of the battery to obtain an estimated state of health; obtain, in accordance with relationship information indicating a relationship between a state of health of the battery after deterioration and a state of charge after deterioration, the state of charge after deterioration corresponding to the estimated state of health, wherein the state of charge after deterioration is a state of charge of the battery during the use period; and adjust the state of charge of the battery to the state of charge after deterioration., characterized in that: the relationship information comprises a table indicating a relationship among the state of health of the battery after the deterioration, the state of charge after deterioration of the battery, a storage temperature, and a deterioration coefficient, and during the use period of the battery, the controller is configured to: obtain the estimated state of health of the battery and obtain a storage temperature of the battery; obtain, from the table, one or more deterioration coefficients corresponding to the estimated state of health, the obtained storage temperature, and a state of charge equal to or larger than a predetermined lower limit value; and obtain, as the state of charge after the deterioration, a state of charge corresponding to a minimum deterioration coefficient of the one or more deterioration coefficients. a controller configured to control charging and discharging of a battery, wherein during a use period of the battery, the controller is configured to: estimate a state of health of the battery to obtain an estimated state of health; obtain, in accordance with relationship information indicating a relationship between a state of health of the battery after deterioration and a state of charge after deterioration, the state of charge after deterioration corresponding to the estimated state of health, wherein the state of charge after deterioration is a state of charge of the battery during the use period; and adjust the state of charge of the battery to the state of charge after deterioration., estimate a state of health of the battery to obtain an estimated state of health; obtain, in accordance with relationship information indicating a relationship between a state of health of the battery after deterioration and a state of charge after deterioration, the state of charge after deterioration corresponding to the estimated state of health, wherein the state of charge after deterioration is a state of charge of the battery during the use period; and adjust the state of charge of the battery to the state of charge after deterioration., characterized in that: the relationship information comprises a table indicating a relationship among the state of health of the battery after the deterioration, the state of charge after deterioration of the battery, a storage temperature, and a deterioration coefficient, and during the use period of the battery, the controller is configured to: obtain the estimated state of health of the battery and obtain a storage temperature of the battery; obtain, from the table, one or more deterioration coefficients corresponding to the estimated state of health, the obtained storage temperature, and a state of charge equal to or larger than a predetermined lower limit value; and obtain, as the state of charge after the deterioration, a state of charge corresponding to a minimum deterioration coefficient of the one or more deterioration coefficients. the relationship information comprises a table indicating a relationship among the state of health of the battery after the deterioration, the state of charge after deterioration of the battery, a storage temperature, and a deterioration coefficient, and during the use period of the battery, the controller is configured to: obtain the estimated state of health of the battery and obtain a storage temperature of the battery; obtain, from the table, one or more deterioration coefficients corresponding to the estimated state of health, the obtained storage temperature, and a state of charge equal to or larger than a predetermined lower limit value; and obtain the estimated state of health of the battery and obtain a storage temperature of the battery; obtain, from the table, one or more deterioration coefficients corresponding to the estimated state of health, the obtained storage temperature, and a state of charge equal to or larger than a predetermined lower limit value; and obtain, as the state of charge after the deterioration, a state of charge corresponding to a minimum deterioration coefficient of the one or more deterioration coefficients.