Specifications

Power sources
Your computer can draw its operating power from two different sources.
m Main batteries Your computer includes one or two nickel-metal-hydride
(NiMH) batteries (depending on the model you have). Two batteries
provide power for up to 8 hours of work time (depending on the battery
conservation features you choose).
Your PowerBook has space for two batteries. You can keep one or two
batteries in the computer at a time. If you need maximum work time, you’ll
want to keep both batteries in the computer. If you want your PowerBook
to weigh less, you can keep one battery in the computer and purchase a
separate battery door to cover the battery bay when the battery is not in the
computer.
m
AC power You can run your computer from any standard electrical outlet by
plugging in the power adapter.
The power adapter is really two power supplies in one. It can run your
computer and charge your batteries at the same time.
These power sources are described in more detail in the following sections.
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6
Power Management
Read this chapter to learn how
you can maximize your
PowerBook’s battery life.