Apple 3400 Series manual Power Management, Power sources

Read this chapter for

information about your

Macintosh PowerBook’s battery.

6 Power Management

Power sources

Your computer can draw its operating power from three different sources.

mMain battery Your computer came with a lithium ion (LiIon) battery. This battery should provide power for 2–4 hours of work time (you may get longer work time, depending on the Macintosh PowerBook model you have and the battery conservation features you use).

mOptional battery Your computer can also use a nickel-metal-hydride (NiMH) battery. This battery provides somewhat less work time than the LiIon battery supplied with your computer. The precise amount of work time with a NiMH battery depends on the Macintosh PowerBook model you have and the battery conservation features you use.

mAC power You can run your computer from a grounded electrical outlet by plugging in the external power adapter that came with your computer. The installed battery will automatically be charged whenever the external AC adapter is connected. The external adapter will charge the battery more quickly if the computer is shut down or in sleep, rather than turned on or operating.

IMPORTANT Be sure to use only the external power adapter that came with your computer (model number M4895) or one made specifically for this PowerBook model.

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