
Read this chapter for
information about your
Macintosh PowerBook’s battery.
6 Power Management
Power sources
Your computer can draw its operating power from two different sources.
mMain battery Your computer came with a lithium ion (LiIon) battery. This battery should provide power for
mAC power You can run your computer from a grounded electrical outlet by plugging in the power adapter.
These power sources are described in more detail in the following sections.
Monitoring the battery charge
There are four ways you can determine the charge level of your battery:
mLook in the battery monitor portion of the Control Strip.
For information on the battery monitor, see the “Batteries & Power” topic of Macintosh Guide, available in the Guide (h) menu.
mSee
mLook at the battery level icon next to the clock in the menu bar.
mLook at the battery indicator level lights on the battery.
71