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Use the fn+f3 and fn+f4 hotkeys to adjust screen brightness as needed.
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If you leave your work, initiate Sleep or Hibernation, or shut down the computer.
Storing a battery
CAUTION: To prevent damage to a battery, do not expose it to high temperatures for extended periods
of time.
If a computer will be unused and unplugged from external power for more than 2 weeks, remove the
battery and store it separately.
To prolong the charge of a stored battery, place it in a cool, dry place.
NOTE: A stored battery should be checked every 6 months. If the capacity is less than 50 percent,
recharge the battery before returning it to storage.
Calibrate a battery before using it if it has been stored for one month or more.
Disposing of a used battery
WARNING! To reduce the risk of fire or burns, do not disassemble, crush, or puncture; do not short
external contacts; do not dispose of in fire or water.
Refer to the Regulatory, Safety and Environmental Notices for battery disposal information.
Shutting down the computer
CAUTION: Unsaved information will be lost when the computer is shut down.
The Shut Down command closes all open programs, including the operating system, and then turns off
the display and computer.
Shut down the computer under any of the following conditions:
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When you need to replace the battery or access components inside the computer
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When you are connecting an external hardware device that does not connect to a USB port
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When the computer will be unused and disconnected from external power for an extended period
To shut down the computer, follow these steps:
NOTE: If the computer is in Sleep or in Hibernation, you must first exit Sleep or Hibernation before
shutdown is possible.
1. Save your work and close all open programs.
2. Click Start.
3. Click Shut down.
Shutting down the computer 21