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Repeat the steps two or three times until the battery recovers normal
capacity.
Leaving the AC adapter connected will shorten battery life. At least once a
month, run the computer on battery power until the battery is fully
discharged, then recharged the battery.
Monitoring battery capacity
Remaining battery power can be monitored in Power Options.
Wait at least 16 seconds after turning on the computer before trying to
monitor the remaining operating time. The computer needs this time to
check the battery's remaining capacity and to calculate the remaining
operating time, based on the current power consumption rate and
remaining battery capacity. The actual remaining operating time may differ
slightly from the calculated time.
Maximizing battery operating time
A battery's usefulness depends on how long it can supply power on a
single charge.
How long the charge lasts in a battery depends on:
■
How you configure the computer (for example, whether you enable
battery-power saving options). The computer provides a battery save
mode, which can be set in Power Options, to conserve battery power.
This mode has the following options:
■
■
■
■
■
■
■
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How often and how long you use the hard disk, optical disc drive and
the diskette drive.
■
How much charge the battery contained to begin with.
■
How you use optional devices, such as an ExpressCard, to which the
battery supplies power.
■
Enabling hibernation and sleep mode conserves battery power if you
are frequently turning the computer off and on.
■
Where you store your programs and data.
■
Closing the display when you are not using the keyboard saves power.
■
Operating time decreases at low temperatures.
User's Manual
CPU Precessing speed
Screen brightness
Cooling Method
System sleep
System hibernation
Monitor Power off
HDD Power off
Power and Power-up Modes
6-9
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- Equipment Checklist
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