●
Disconnect external devices that are not connected to an external power source when you are not
using them.
●
Stop, disable, or remove any external media cards that you are not using.
●
Press the Decrease Screen Brightness key or Increase Screen Brightness key to adjust screen
brightness as needed.
●
If leaving 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 is unused and disconnected 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: Check a stored battery 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 the battery. Do
not short external contacts. Do not dispose of the battery in fire or water.
For more information, refer to the Regulatory, Safety and Environmental Notices included with this
computer.
Replacing the battery
Computer battery life varies, depending on power management settings, programs running on the
computer, display brightness, external devices connected to the computer, and other factors.
Battery Check notifies you to replace the battery when an internal cell is not charging properly, or when
the battery storage capacity has reached a weak condition. A message refers you to the HP Web site
for more information about ordering a replacement battery. If the battery is covered by an HP warranty,
instructions include a warranty ID.
NOTE: HP recommends purchasing a new battery when the storage capacity light illuminates green-
yellow.
54 Chapter 6 Power management
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