Apple APLLE MACBOOK manual Using Your MacBook, Carrying Your MacBook

Using Your MacBook

When you’re using your MacBook or charging the battery, it is normal for the bottom of the case to get warm. For prolonged use, place your MacBook on a flat, stable surface.

Do not leave the bottom of your MacBook 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 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.

Warning: Do not place your MacBook 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.

Carrying Your MacBook

If you carry your MacBook 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.

106Appendix B Safety, Use, and Care Information