Patent ID: RE40236

Claim:
A method for managing power in a handheld computer handheld electronic device with one or more processors , the handheld computer handheld electronic device having a sleep mode setting and comprising a battery, at least one input device for turning the handheld computer handheld electronic device on, and at least one device for detecting a battery power level, the method comprising: receiving an input signal to turn the handheld computer handheld electronic device on; determining whether the handheld computer handheld electronic device is in the sleep mode; accessing the device for detecting the battery power level if the handheld computer handheld electronic device is in the sleep mode; responsive to detecting the battery power level, comparing the detected battery power level to a first predetermined power level that is selected from a group of power levels consisting of (i) a power level that occurs on or about one week prior to the handheld computer handheld electronic device losing data stored in a memory of the handheld computer handheld electronic device , (ii) a power level that is based on measuring an ambient temperature of the handheld computer handheld electronic device , and (iii) a power level that is based on about 3.71 volts; and maintaining the handheld computer handheld electronic device in the sleep mode if the detected battery power level is less than the first predetermined power level.