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Note: If system runs at heavy loading or in a high temperature environment, the battery may
not be fully charged. You need to continue to charge it with the AC adapter plugged in until
the charging LED turns green.
Checking the Battery Level
You can check the remaining battery power in the Windows battery status indicator, which is located at the lower right-
hand corner of the task bar. (If you do not see a battery or AC-in icon on the task tray, go to Power Options Properties
box and click on the Advanced tab. Check off "Always show icon on the task bar".) Alternatively, you can access the power
meter by clicking the Power Options icon in the Windows Control Panel.
Prolonging the Battery's Life and Usage Cycles
There are ways you can do to prolong the use of battery.
. Use the AC adapter wherever AC wall outlet is available. This will ensure uninterrupted computing.
. Purchase additional battery pack.
. Store the battery pack in room temperature. Higher temperature tends to deplete the battery's power faster.
. Make good use of the power management function. Save To Disk (Hibernate) saves the most energy by storing current
system contents in a hard disk space reserved for this function.
. The life expectancy of the battery is approximately 300 recharges.
. See the notices section in the beginning of the user manual on how to care for the battery pack.
Note: Read Section Protecting Your Notebook in the beginning of this manual for tips about
how to maintain the battery pack.
Note: To achieve optimal battery performance, you may need to do a battery calibration at a 3-
month interval. To do this:
1. Fully charge the battery.
2. Then discharge the battery by entering the BIOS setup screen. (Press F2 key as soon as you
turn on the computer. And let it remain at the setup screen until the battery runs out.
3. Fully charge the battery again.
Using Windows Power Options
Windows Power Management provides basic power saving features. In the Windows Power Options Properties [Start
> Settings > Control Panel > Power Options] dialogue box, you may enter time-out values for display and hard disk
drive. Windows power manager saves power by turning off hard drive after 1 minute of inactivity, for example.
Windows' Power Schemes
The power management control panel in Windows XP, known as Power Schemes, is designed to provide the user with
an easy-to-use interface. The Power Schemes tab can be found in the Power Options Properties panel that is accessible
via the control panel window. Schemes are easy to understand, based on notebook usage scenarios, and control not
only processor power usage but other system peripherals as well. Go to [Start > Settings > Control Panel] and double-
click the Power Options icon.
Always on mode puts the processor into maximum performance mode, which provides no power saving. The other
schemes control processor performance based on demand. For example, Max Battery mode lowers the processor's speed
and voltage to conserve power as much as possible.
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