CHARGE-DISCHARGE CONTROL CIRCUIT, CHARGE-DISCHARGE CONTROL DEVICE, AND BATTERY DEVICE

A battery device includes a battery; a first predetermined state detection part detecting a first predetermined state regarding a first cell; a first logic circuit performing first control based on detection result of first predetermined state detection part; a second predetermined state detection part detecting a second predetermined state regarding a second cell; a charger connection detection part detecting presence or absence of connection between battery and a charger; and a second logic circuit performing second control based on detection result of second predetermined state detection part, detection result of charger connection detection part, and first notification from first logic circuit regarding first predetermined state. The first predetermined state and second predetermined state are an over-charge state or an over-discharge state, and second logic circuit masks first notification from first logic circuit and performs second control in response to detection result of charger connection detection part satisfying a predetermined condition.