Apple PowerBook (5300 Series) - Manual (Page 144)

Storing the Macintosh PowerBook
1 Save your work on a hard disk or floppy disks.
2 Press the Power key and click shut down, or choose Shut Down from the Special menu.
3 Close the display.
4 Store the computer in a cool, dry place.
Storage temperatures should remain between –25°C and 60°C (between
–13°F and 140°F). Avoid leaving the computer where temperatures may be
extreme or unpredictable—in the trunk of a car, for example.
Service and support
If your computer is malfunctioning but does not appear to be physically
damaged, shut it down (and leave the power adapter plugged in, if possible)
until you can get help.
If you know or suspect that your computer is physically damaged, disconnect
the power adapter, remove the battery, and do not use the computer until it
can be repaired.
See the service and support information that came with your computer for
information about customer assistance.
133 Health, Safety, and Maintenance Tips