Patent ID: 8527224

Claim:
An electronic apparatus comprising: a receiving unit that receives a dischargeable capacity, a first predetermined voltage and a second predetermined voltage from a battery, wherein the electronic apparatus displays a low power warning on a display unit after a battery voltage reaches the first predetermined voltage, and the electronic apparatus carries out a low power operation after the battery voltage reaches the second predetermined voltage; and a calculation unit that: calculates a difference between the first predetermined voltage and the second predetermined voltage, determines, using the calculated difference between the first predetermined voltage and the second predetermined voltage, whether or not the first predetermined voltage is less than the second predetermined voltage, corrects the dischargeable capacity if the calculation unit has determined that the first predetermined voltage is less than the second predetermined voltage, calculates a first available time using the corrected dischargeable capacity if the calculation unit has determined that the first predetermined voltage is less than the second predetermined voltage, and calculates a second available time using the dischargeable capacity if the calculation unit has determined that the first predetermined voltage is not less than the second predetermined voltage.