To Optimize Battery Life - HP OmniBook 2100 Reference Manual

To optimize battery life

Follow these suggestions to optimize your battery life (operating time).
• Plug in the ac adapter, especially while using the floppy disk drive, the CD-ROM
drive, or any external connections.
• Put the OmniBook in Suspend mode whenever you are not using it for a short
time. Press the blue power button for approximately 1 second, or (from
Windows 95 or Windows 98), select Start menu, Suspend.
• Put the OmniBook in Hibernate mode whenever you want to save your current
session, but will not be using the computer for several hours or more (Fn+F12).
• Turn the OmniBook off whenever you will not be using it for several hours or
more: press the blue and hold the blue power button until the display shuts
down or select Start menu, Shut Down. The current session is not saved.
• Turn the brightness of the display down to lowest comfortable level. This
reduces backlight power, which can increase operating time by as much as 15%.
• Set the automatic time-out settings to emphasize saving power (page 3-10).
• 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 are not using it. Some
I/O cards use significant power, even while they're inactive.
• If you work with an application that uses the serial port or a PC Card, exit the
application when you are done using it.
• Install a secondary battery in the plug-in module bay to double the operating
time.
Managing Battery Power
Conserving Battery Power
3-9