Sharp Actius PC-UM30W, Operation Manual

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If the actual remaining power in your battery is less than what
Windows Power Meter indicates, you should condition the battery pack
as per the procedure on “Conditioning the Battery Pack”.
Low Battery Indication
When the battery power becomes significantly low, the battery indicator
( )
blinks
red, the warning beep sounds for about ten seconds. Save your data and turn off the
computer, or connect the computer to AC power immediately. Otherwise, the
computer will be shut down and the data may be lost.
In Windows, the alarm will tell you when the battery drops to the specified level by
sounding an alarm or displaying a message, and let your computer go on System
standby/hibernate or be shut down automatically.
1. In the Power Options Properties dialog box, select Alarms tab.
2. Set the battery level at which the alarms are activated. We recommend you set
Critical battery alarm to 5 % or more and Low battery alarm to more than that
of Critical battery alarm.
3. Set the Alarm Action… to the appropriate settings.
4. Click OK twice.
5. Close the Control Panel window.
Battery Indicator