Apple MC024LL/A, MD385LL/A manual Using the MacBook Pro Battery

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Using the MacBook Pro Battery

When the MagSafe power adapter isn’t connected, your MacBook Pro draws power from its built-in 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 Wi-Fi or Bluetooth® wireless technology and reducing screen brightness can help conserve battery charge, for example, when you’re traveling by air. Many of your system preferences are automatically set to optimize battery life.

You can determine the charge remaining in the battery by looking at the eight battery level indicator lights on the left side of your MacBook Pro. Press the button next to the lights, and the lights glow briefly to show how much charge remains in the battery.

Important:  If only one indicator light is on, very little charge is left. If no lights are on, the battery is completely drained and the MacBook Pro won’t start up unless the power adapter is connected. Plug in the power adapter to let the battery recharge. For more information about battery indicator lights, see page 56.

You can also check the amount of battery charge remaining by viewing the Battery () status icon in the menu bar. The battery charge level displayed is based on the amount of power left in the battery with the applications, peripheral devices, and system settings you’re currently using. To conserve battery power, close applications and disconnect peripheral devices not in use, and adjust your Energy Saver settings. For more information about battery conservation and performance tips, go to www.apple.com/batteries/notebooks.html.

30Chapter 2   Life with Your MacBook Pro

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Contents Were made for each other Welcome to your MacBook Pro OS X Lion Page Contents Looking for Something? Ready, Set Up, Go Ready, Set Up, Go Setting Up Your MacBook Pro What’s in the BoxReady, Set Up, Go Connect to a wireless or wired network Power button Configure your MacBook Pro with Setup Assistant To set up your MacBook Pro Customize the Mac OS X desktop and set preferences Putting Your MacBook Pro to Sleep or Shutting It Down Putting Your MacBook Pro to SleepTo put your MacBook Pro to sleep, do one of the following Shutting Down Your MacBook Pro To wake your MacBook ProTo shut down your MacBook Pro, do one of the following Page Life with Your MacBook Pro Basic Features of Your MacBook Pro Built-in stereo speakers Keyboard Features of Your MacBook Pro Brightness keys F1, F2 Ports on Your MacBook Pro ¯ MagSafe power port Using the Multi-Touch Trackpad Secondary-click zone Life with Your MacBook Pro Life with Your MacBook Pro Using the MacBook Pro Battery Charging the Battery Getting AnswersTo open Help Center More Information To learn about SeeInstructions, technical support Manuals for Apple products Page Boost Your MacBook Pro Boost Your MacBook Pro Replacing the Hard Disk Drive To replace the hard disk drive in your MacBook ProBoost Your MacBook Pro Boost Your MacBook Pro Using the pull tab, gently tilt up the drive Connector Boost Your MacBook Pro Boost Your MacBook Pro Long Short Installing Additional Memory To install memory in your MacBook ProNotches Boost Your MacBook Pro Follow the instructions for replacing the bottom case in on Making Sure Your MacBook Pro Recognizes the New Memory To check the computer’s memoryPage Problem, Meet Solution An Ounce of Prevention Problems That Prevent You from Using Your MacBook Pro To force an application to quitIf your MacBook Pro doesn’t turn on or start up Try restarting your MacBook Pro Repairing, Restoring, or Reinstalling Mac OS X Software If you have trouble ejecting a discProblem, Meet Solution Repairing a Disk with Disk Utility To connect by using a Wi-Fi networkTo open the Mac OS X Utilities application Restoring Information Using a Time Machine Backup Reinstalling Mac OS X and Apple ApplicationsRestoring Your Computer to Its Factory Settings Using Apple Hardware Test Problems with Your Internet ConnectionTo use Apple Hardware Test To use Network Diagnostics Cable Modem, DSL Modem, and LAN Internet ConnectionsTo check your Network preference settings PPPoE ConnectionsProblems with Wi-Fi Communication If you have trouble using Wi-Fi communicationTo check for updated software Keeping Your Software Up to DateLearning More, Service, and Support Online Resources Onscreen HelpSystem Information AppleCare Service and Support Country Phone WebsiteLocating Your Product Serial Number Last, but Not Least Important Safety Information Last, but Not Least AC plug MagSafe power specifications Laser Information for Optical Disc Drives Important Handling Information Last, but Not Least Understanding Ergonomics Keyboard and TrackpadExternal Mouse ChairApple and the Environment Built-in DisplayRegulatory Compliance Information Bluetooth Europe-EU Declaration of Conformity Korea Warning Statements Japan Vcci Class B Statement China Battery Statement Taiwan Battery Statement Looking for Something? Index See also keys Keynote application 21 keys An application 53 your computer  Light  Simultaneously published in the United States and Canada