Apple MacBook Pro (17-inch, Late 2008) - Manual (Page 28)

28 Chapter 2 Life with Your MacBook Pro
 Two-finger rotating lets you rotate photos, pages, and more.
 Three-finger swiping lets you rapidly page through documents, move to the previous
or next photo, and more.
Using the MacBook Pro Battery
When the MagSafe power adapter isn’t connected, your MacBook Pro draws power
from its battery. The length of time that you can run your MacBook Pro varies,
depending on the applications you use and the external devices connected to your
MacBook Pro. Turning off features such as AirPort Extreme or Bluetooth ® wireless
technology can help conserve the battery charge. Many of your system preferences are
automatically set to optimize battery life.