Calculating remaining battery capacity based on battery-side end voltage and device-side end voltage

A method for detecting a remaining capacity of a charge and discharge battery serving as a power supply for supplying a voltage to an electronic device, the method comprising:

• setting a device-side end voltage which ends operations of the electronic device;
• setting an accumulated value indicative of a remaining capacity of the battery, the accumulated value being set in a fully charged state of the battery so that the accumulated value reaches zero when a voltage in the battery is the device-side end voltage;
• determining whether a battery-side end voltage which ends discharges from the battery corresponds to the device-side end voltage;
• correcting the accumulated value in response to the device-side end voltage if the battery-side end voltage does not correspond to the device-side end voltage;
• calculating a remaining capacity of the battery corresponding to the device-side end voltage based on the corrected accumulated value;
• and
• displaying the calculated remaining capacity of the battery.

A remaining battery capacity indicating apparatus for detecting a remaining capacity of a charge and discharge battery serving as a power supply for supplying a voltage to an electronic device, comprising:

• end voltage setting means for setting a device-side end voltage which ends operations of the electronic device;
• accumulated value setting means for setting an accumulated value indicative of a remaining capacity of the battery, the accumulated value being set in a fully charged state of the battery so that the accumulated value reaches zero when a voltage in the battery is the device-side end voltage;
• judging means for determining whether a battery-side end voltage which ends discharges from the battery corresponds to the device-side end voltage;
• correcting means for correcting the accumulated value in response to the device-side end voltage if the battery-side end voltage does not correspond to the device-side end voltage;
• calculating means for calculating a remaining capacity of the battery corresponding to the device-side end voltage based on the corrected accumulated value;
• and
• display means for displaying the calculated remaining capacity of the battery.