User Guide - Windows 7

Identifying low battery levels
When a battery that is the sole power source for the computer reaches a low or critical battery level, the
power meter icon in the notication area displays a low or critical battery notication.
NOTE: For additional information about the power meter, see Using the power meter on page 31.
The computer takes the following actions for a critical battery level:
●
If Hibernation is enabled and the computer is on or in the Sleep state, the computer initiates
Hibernation.
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If Hibernation is disabled, and the computer is on or in the Sleep state, the computer remains briey in
the Sleep state, and then shuts down and loses any unsaved information.
Resolving a low battery level
Resolving a low battery level when external power is available
●
Connect an AC adapter.
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Connect an optional docking or expansion device.
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Connect an optional power adapter purchased as an accessory from HP.
Resolving a low battery level when no power source is available
Save your work and shut down the computer.
Resolving a low battery level when the computer cannot exit Hibernation
When the computer lacks suicient power to exit Hibernation, follow these steps:
1. Replace the discharged user-replaceable battery with a charged battery, or connect the AC adapter to
the computer and to external power.
2. Exit Hibernation by pressing the power button.
Storing a user-replaceable battery
CAUTION: To reduce the risk of damage to a battery, do not expose it to high temperatures for extended
periods of time.
If your computer will be unused and unplugged from external power for more than 2 weeks, remove the
battery and store it separately in a cool, dry place to prolong the battery charge.
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.
Disposing of a user-replaceable battery
WARNING! To reduce the risk of re or burns, do not disassemble, crush, or puncture; do not short external
contacts; do not dispose of in re or water.
See the Regulatory, Safety and Environmental Notices for proper battery disposal. To access this guide, select
Start > HP Support Assistant > Next > My computer > User Guides.
Running on battery power 33