Apple G4 15 manual Use a lighter desktop pattern, Battery-Saving Tips

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Battery-Saving Tips

The amount of work time your PowerBook battery can provide before you need to recharge it depends on the equipment you’re using with your computer and the steps you take to conserve power while you work.

To save battery power, do one or more of the following:

mDisconnect bus-powered USB or FireWire devices when they are not in use.

mQuit open applications that you are not using.

mRemove CD-ROM and DVD-ROM discs when they are not in use.

mReduce screen brightness using the brightness control on the PowerBook keyboard.

mUse a lighter desktop pattern.

mClose the display to put the computer in sleep whenever your work is interrupted.

Additional options are available in the Energy Saver control panel and Control Strip module:

mSet the hard disk to spin down after a short time.

mSet your PowerBook to sleep after inactivity of ﬁve minutes or less.

mMake sure that processor cycling is turned on.

mSet your processor to operate at a slower speed when using non-processor-intensive applications such as a word processor. (Operating at a slower speed conserves battery power. However, it may affect performance of processor-intensive applications, such as DVD playback.)

Use the Energy Saver Control Strip module to easily access your computer’s energy settings.

Energy Settings

For More Information on Your PowerBook Battery

Additional information is available in Mac Help (see page 36). Choose Mac Help from the Help menu and search for “battery.”

Using Your Computer 51

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Contents Getting Started Apple Computer, Inc. All rights reserved Apple Computer, IncContents PowerBook Speciﬁcations BatteryGetting Started Plugging In the Computer Connecting the Internal ModemOpening the Display Problems Turning the Computer On? Turning the Computer OnIf the computer still doesn’t start up, see Moving Items on the Screen Tips for Using the TrackpadAdjusting the Brightness and Display Resolution Adjusting the Internal DisplayAbout the Resolutions Supported by the Built-In Display Adjusting the Display ResolutionWhere to Go From Here Calibrating Your Battery for Best PerformanceIf you would like additional information, see the following What to Do When You Are Finished Working Put Your PowerBook to SleepShut Down Your PowerBook Page This Chapter If You Are New to the MacBasic Features of Your PowerBook Press this key to eject a CD or DVD disc Additional Features of Your PowerBook Connect a standard phone line directly to the internal modem Inside Your PowerBook Optional AirPort Card Sherlock 2-Your Internet Search Detective To Learn More What You Can DoTo Get Started Tips and TricksKidSafe ITools-Free Internet Services for Mac UsersUpload pictures to your iDisk to create custom iCards What You Can Do To Get StartedApple.com-Your Starting Place on the World Wide Web IReviewApple Support QuickTime-Audio and Video on the Internet Volume control Play button Favorites drawerWhat You Can Do Playhead IMovie 2-Create and Edit Your Own Digital MoviesShare your desktop iMovie with your friends and family Set Schedule Adjust your Software Update schedule Accounts Multiple Users-Turn One Mac Into ManyCreate a voice print passphrase Mac Help-Answers to All Your Macintosh Questions Using Your Computer Using USB Devices USB Devices and Battery PowerUniversal Serial Bus USB For More Information on USB Using Multiple USB Devices at the Same TimeFireWire These are some of the things you can do with FireWireUsing FireWire Devices FireWire Devices and Battery Power FireWire Target Disk ModeFor More Information on FireWire PC Cards Inserting and Ejecting a PC CardFor More Information on PC Cards AirPort Wireless Internet and Networking How AirPort Provides Wireless Internet AccessFor More Information on AirPort Ethernet 10/100Base-T For More Information on Using EthernetInfrared IrDA Making an Infrared ConnectionFor More Information on Infrared External Video Support VGA and S-Video Using Your PowerBook With the Display Closed Connecting an External MonitorFor More Information on Using an External Monitor or TV Connecting a Television, VCR, or Other Video DeviceRemoving and Replacing the Battery BatteryCharging a Battery Calibrating a New Battery for Best PerformanceSwapping Batteries While the Computer Is in Sleep Battery-Saving Tips For More Information on Your PowerBook BatteryUse a lighter desktop pattern Inserting Discs DVD DriveEjecting a Disc From the DVD Drive Playing DVD DiscsFor More Information on Your DVD Drive Using the Standard Function Keys Keyboard Controls and Programmable Function KeysAssigning Programmable Function Keys For More Information on Keyboard Controls Using the Embedded Numeric KeypadFor More Information on Security Options Security Slot and Keyboard LockWorking Inside Your Computer Installing Additional RAM Installing Additional MemoryWorking Inside Your Computer Chapter Locate the upper RAM expansion slot Page Working Inside Your Computer Making Sure Your Computer Recognizes the New Memory Start up your computerInstalling an AirPort Card Chapter AirPort antenna AirPort Card Working Inside Your Computer Removing the Internal Hard Disk Working Inside Your Computer Disconnect the connector cable from the logic board Replace the Hard Disk and Bottom Case Connect the hard disk connector cable to the logic board Working Inside Your Computer Page Information in This Chapter TroubleshootingProblems That Prevent You From Using Your Computer Troubleshooting Locating Your Product Serial Number Other ProblemsApple System Profiler SpeciﬁcationsPowerBook Specifications Modem speed 53 kilobits per second KbpsOutput DC 14.4 External monitor in extended desktop mode Page Cleaning Your PowerBook Display Cleaning Your PowerBookTo clean your PowerBook screen, do the following Storing Your PowerBookUsing Your PowerBook Safety Instructions for Setting Up and Using Your ComputerPlugging In the Power Adapter Connecting a Phone Line to the Internal ModemGeneral Safety Instructions Ergonomics Built-in display Wavelength 790 nm Power out of objective lens 3.3 mW