User's Manual
processes.
3. Watch the CPU Usage. It is okay if the processor usage is occasionally 100 percent, but if it is 100
percent most of the time, this may indicate a problem.
What to do if applications are keeping the CPU busy
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Set the computer to automatically run the CPU at a lower speed when the computer is operating
on battery power (see above).
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If possible, close applications that keep the CPU busy when you are not using them.
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Turn off or suspend your computer whenever you are not using it. This will help to conserve
power.
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Inform your organization's help desk. They may have an updated version of the application.
Tip 3. Calibrate your battery
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Over time, the accuracy of the Windows battery gas gauge may be affected by repeated charging
and discharging of the battery. Calibrating the battery every 3 or 4 months helps to keep the gas
gauge accurate. For information on calibrating the battery, refer to Battery Calibration
.
Tip 4. Get a good charge
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Your computer will charge more quickly if it is turned off or suspended.
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In warmer or cooler temperatures, your battery can take much longer to fully charge.
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If your battery is charged in a cold (less than 41°F/5°C) or very warm (greater than 122°F/50°C)
environment, it is possible that the Battery Charge LED will indicate that the charge has stopped;
however, this does not necessarily mean that your battery is fully charged.
Tip 5. Prevent data loss
Follow these guidelines to prevent data loss when removing your battery or storing your computer:
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You will lose data if you remove the battery while the computer is operating or suspended. To
prevent this, shutdown your computer or put it into hibernate (suspend-to-disk) mode before
removing your battery.
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If you plan to store your computer for more than a few days, shutdown your computer or put it
into hibernate mode. Remove the battery before storing the computer.
Tip 6. Clean terminals
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Dirty terminals can be a cause of charging problems. Clean battery terminals with a cotton swab
dipped in isopropyl alcohol. Make sure that the alcohol has evaporated before reinstalling the
b
atter
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.
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