Apple PowerBook G4 (12-inch, 1.5 GHz) - Manual (Page 18)

18 Chapter 1 Getting Started
Calibrating Your Battery
To get the longest running time from your PowerBook battery, complete the following
steps sometime during the first week you have your PowerBook.
To initially calibrate your battery, follow these steps:
1 Plug in the power adapter and fully charge your PowerBook battery until the light on
the power adapter plug changes to green and the onscreen meter in the menu bar
indicates that the battery is fully charged.
2 Disconnect the power adapter and use your PowerBook.
When your battery gets low, you will see the first low-battery warning dialog on the
screen. Continue to use your PowerBook until it automatically goes to sleep; at that
point the battery has been sufficiently drained for calibration.
3 Connect the power adapter and leave it connected until the battery is fully charged
again.
Important: You only have to fully discharge and then charge your battery once to
calibrate it. After that, you can connect and disconnect the power adapter when the
battery is at any charge level.
If you purchased additional batteries, repeat the calibration procedure with the
additional batteries as well. For more information about your power adapter and
battery, see “Using Your Power Adapter” on page 23 and “Battery” on page 49.
What’s Next?
 Learn the important basics about your PowerBook. Check out Chapter 2, “The Basics,”
on page 21.
 Have fun trying out your computer’s applications and Internet features. Browse the
Mac OS X booklet that came with your computer.
 If you’re unfamiliar with Mac OS X, open Mac OS Help and browse the information.
 Switching from another computer? Choose Help > Mac Help from the menu bar and
see the “New to Mac OS X” section. It will help you use your previous computer
knowledge to get started on a Mac.
LL3093.book Page 18 Friday, February 4, 2005 5:50 PM