Patent ID: 7363519

Claim:
An electronic device comprising: a power source; a first electronic component configured to operate using power provided by said power source; a power management device configured to control a power consumption setting of said first electronic component; and an input device configured to accept a time specification, connected to said power management device, said time specification being indicative of a desired period of operation by said electronic device using power supplied by said power source, wherein, in response to the entry of the time specification from a user, said power management device adjusts the power consumption setting for said first electronic component to provide a period of operation by said electronic device until said power source is depleted, said period of operation being substantially the same as said time specification; and input means configured to accept a user override input overriding the power consumption setting by the power management device for said first electronic component, wherein the power management device is configured to adjust a power consumption setting of a second electronic component in an attempt to compensate for the user override input.