Apple PowerBook G3 - Manual (Page 40)

40 Chapter 2
If you continue working until the computer goes to sleep automatically, you can wake it
again as soon as you plug in the power adapter or replace the battery with a charged battery.
Maximizing Work Time
The amount of work time your PowerBook’s battery can provide before you need to
recharge depends on the equipment you’re using with your computer and the steps you take
to conserve power while you work.
Battery-saving measures include the following (in order of effectiveness):
m Make sure that power cycling is turned on.
Your PowerBook reduces the processor power when it is not being used in order to save
battery power. For instructions on setting up power cycling, see the online help, available
in the Help menu.
m Set your PowerBook to run in a reduced processor speed mode when performing tasks
such as word processing that don’t require fast processing speed.
Setting your PowerBook to run in a reduced processor mode will provide additional
battery savings but may affect system performance. For instructions, see the online help,
available in the Help menu.
m Remove CD-ROM and DVD-ROM discs when they are not in use.
m Set the hard disk to spin down after a short time interval.
m Set your PowerBook display to turn off (instead of dim) when not in use.
m Reduce screen brightness using the brightness control (¤) on the PowerBook case.
m Set your PowerBook to sleep after inactivity of 5 minutes or less.
m Take advantage of the sleep feature of your PowerBook whenever your work is
interrupted. You just need to close the display to put the computer in sleep.
You can find more information on the power conservation software and battery
conservation tips in the online help, available in the Help menu.
Note: If your PowerBook came with an internal modem, it does not support the Energy
Saver feature “Wake up when the modem detects a ring.”
Important Recharge a depleted battery as soon as possible. Leaving a depleted battery in
the computer for a length of time (especially in a hot location, such as the trunk of a car)
may damage the battery so that it can’t be recharged. If this happens, you need to replace
the battery.