An information terminal driven by a battery disclosed herein comprises: a voltage detector configured to detect a battery voltage which is a voltage of the battery; a drive unit configured to be driven upon receiving a supply of a power source from the battery; a load calculator configured to calculate a load on the battery of the drive unit; and a battery remaining capacity calculator configured to calculate a battery remaining capacity based on the battery voltage, the battery remaining capacity calculator calculating the battery remaining capacity corrected based on the load calculated by the load calculator.
CROSS REFERENCE TO RELATED APPLICATION
This application is a divisional application of application Ser. No. 11/093,020 which claims benefit of priority under 35 U.S.C. .sctn. 119 to Japanese Patent Application No. 2004-98569, filed on Mar. 30, 2004, Japanese Patent Application No. 2004-195677, filed on Jul. 1, 2004 and Japanese Patent Application No. 2005-24089, filed on Jan. 31, 2005. The entire contents of which are incorporated by reference herein.
Priority Data
Mar 30, 2004 [JP] 2004-98569 Jul 01, 2004 [JP] 2004-195677 Jan 31, 2005 [JP] 2005-24089