The electronic equipment, economical electricity mode change manner and economical electricity mode

摘要

PPROBLEM TO BE SOLVED: To improve convenience for use for a long time. PSOLUTION: A cell-phone handset for performing multiple functions includes: a secondary battery 41; a residual amount detection part 51 that detects the residual amount of a battery; and a setting part 53 that sets to a power saving mode that disables at least a part of the functions other than a predetermined function related to the lastly performed function when the residual amount of the battery detected by the residual amount detection part 51 is a predetermined threshold value or under and there is no performing function in the multiple functions or there is no performing function. PCOPYRIGHT: (C)2010,JPO&INPIT