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106 Appendix B Safety, Use, and Care Information
Using Your MacBook Pro
When you’re using your MacBook Pro or charging the battery, it is normal for the
bottom of the case to get warm. For prolonged use, place your MacBook Pro on a flat,
stable surface.
Do not leave the bottom of your MacBook Pro in contact with your lap or any surface
of your body for extended periods. Prolonged contact with your body could cause
discomfort and potentially a burn.
The bottom of the MacBook Pro case functions as a cooling surface that transfers heat
from inside the computer to the cooler air outside. The bottom of the case is raised
slightly to allow airflow that keeps the unit within normal operating temperatures.
In addition, warm air is vented from the slots in the back of the case.
Carrying Your MacBook Pro
If you carry your MacBook Pro in a bag or briefcase, make sure that there are no loose
items (such as paper clips or coins) that could accidentally get inside the computer
through an opening such as the optical drive slot or get stuck inside a port. Also, keep
magnetically sensitive items away from the power adapter port.
Warning: Do not place your MacBook Pro on a pillow or other soft material when it is
on, as the material can block the airflow vents, in particular the rear vents, and cause
the computer to overheat. Never place anything over your keyboard when operating
in closed-lid mode. This can cause your computer to cycle on and off which might
create excessive heat and drain your battery. Never turn on your computer unless all
of its internal and external parts are in place. Operating the computer when it is open
or missing parts can be dangerous and can damage your computer.