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Using Your Computer 57
Battery-Conservation Tips
The amount of work time your PowerBook battery can provide before you need to recharge
it depends on the equipment you’re using with your computer and the steps you take to
conserve power while you work.
To conserve battery power, do one or more of the following:
m Disconnect bus-powered USB or FireWire devices when they are not in use.
m Quit open applications that you are not using.
m Remove CD-ROM and DVD-ROM discs when they are not in use.
m Reduce screen brightness using the brightness controls on the PowerBook keyboard.
m Put the computer in sleep whenever your work is interrupted.
m In Mac OS 9, select “Turn off the built-in display instead of dimming it” on the Advanced
Settings tab of the Energy Saver control panel
You can also:
m Set the hard disk to spin down after a short time.
m Set your PowerBook to sleep after inactivity of five minutes or less.
To access your computer’s energy settings:
m In Mac OS 9, use Energy Settings in the Control Strip.
m In Mac OS X, use the Energy Saver pane of System Preferences.
For More Information on Your PowerBook Battery
Additional information is available in Mac Help (see page 42). Choose Mac Help from the
Help menu and search for “battery.”