HP OmniBook 800 Notebook PC - Manual (Page 31)

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• Plug in the ac adapter, especially while using the floppy drive, a CD-ROM drive,
or any external connections.
• Turn down the brightness of the display to the lowest comfortable level. This
reduces the backlight power, which can increase the battery operating time.
• Set power management to an option that emphasizes saving power. See “To
change how power is managed.”
• If you work with an application that uses the serial port or an I/O card, exit the
application when you’re done using it.
• If you have an I/O PC card—that is, a PC card having an external connection,
such as a modem or network card—remove it when you’re not using it. Some I/O
cards use significant power, even while they’re inactive.
To change how power is managed
You can change power-management settings that affect power usage and
performance. For example, you can change automatic timeout settings. A larger
timeout setting usually uses more battery power. For ideas about how to save battery
power, see
“To save battery power.”
• Run HP User Tools and click the OmniBook Power Management button on the
Settings tab. You can change these power settings:
Automatic timeout settings.
–or–
• Save your work, then run the System Configuration Utility and use its Power
menu. You can change these power settings:
Automatic timeout settings (rebooting is required).
Audio timeout setting (rebooting is required).
Note
Most OmniBook automatic timeout features operate only when the OmniBook is
running on battery power. For example, if the ac adapter is powering the unit, the
OmniBook does not automatically turn off.