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Using Your Computer 53
Battery-Conservation Tips
The amount of work time your PowerBook battery can provide before you need to recharge
depends on the applications and peripheral devices you’re currently using and the steps you
take to conserve power while you work.
For the best conservation of battery power, do 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 and DVD discs when they are not in use.
m Reduce screen brightness using the brightness controls on the PowerBook keyboard.
m If you have an AirPort Card installed, turn AirPort off (use the AirPort status icon in the
menu bar).
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 save battery power, select the following options in the Energy Saver pane of System
Preferences:
m Choose Longest Battery Life from the Optimize Energy Settings pop-up menu, and then
click More Options.
m Choose Battery Power from the “Settings for” pop-up menu, click the Options tab, and
choose Reduced from the Processor Performance pop-up menu.
For More Information on Your PowerBook Battery
Additional information is available in Mac Help (see page 37). Choose Help > Mac Help and
search for “battery.”
LL2222.Book Page 53 Friday, December 13, 2002 12:11 PM