Patent ID: 9086463
Filing Date: 2015-07-21
Classification: G01R

Abstract:
1. A power supply apparatus comprising: a backup battery; a timer unit for measuring a first time required to charge the backup battery from a first State Of Charge (SOC) to a second SOC, or a second time required to discharge the backup battery from the second SOC to the first SOC; a determination unit for determining a degree of degradation in a capacity of the backup battery based on the first time or the second time; a charging unit for charging the backup battery; a discharging unit for discharging the backup battery; and a charging/discharging control unit configured to control charging of the backup battery by using the charging unit and discharging of the backup battery by using the discharging unit, wherein the charging/discharging control unit controls the charging unit so that, at a predetermined timing, the backup battery is charged from the first SOC to the second SOC, or controls the discharging unit so that, at the predetermined timing, the backup battery is discharged from the second SOC to the first SOC.