STORAGE BATTERY CONTROL DEVICE, POWER STORAGE SYSTEM, AND STORAGE BATTERY CONTROL METHOD

A storage battery control device controls a power storage system including a plurality of storage batteries connected in series with a load, a bypass unit configured to bypass the storage battery, and a control device. The control device is configured to execute: a detection process of, during a first discharge period in which a voltage value at discharge is equal to or less than a first discharge threshold value, detecting a zero current state in which the current value detected by a current sensor becomes zero; and a first bypass process of, in response to detecting the zero current state in the detection process, bypassing a storage battery having a voltage value or a state of charge equal to or less than the first discharge threshold value by the bypass unit.