Apple G4 15 manual Removing and Replacing the Battery

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Battery

When the external power adapter is not connected, your computer draws power from its battery. You can determine the charge left in your battery by looking at the battery level indicator lights on the battery itself. The lights glow to show how much charge is left in the battery. The indicator lights remain lit for a few seconds after you press the button.

Important If only one ﬂashing light is on, very little charge is left. If no lights are visible, the battery is completely drained and the computer will not start up unless the power adapter is connected. Plug in the power adapter for several hours to let the battery recharge.

Battery

Battery LEDs

Removing and Replacing the Battery

To remove the battery:

1Shut down your PowerBook, turn it over, and locate the battery release latch.

2Slide the latch down and gently remove the battery.

Latch

Battery

Using Your Computer 49

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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 Turning the Computer On Problems Turning the Computer On?If 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 ResolutionCalibrating Your Battery for Best Performance Where to Go From HereIf you would like additional information, see the following Put Your PowerBook to Sleep What to Do When You Are Finished WorkingShut 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 Get Started What You Can DoTips and Tricks To Learn MoreKidSafe 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 USB Devices and Battery Power Using USB DevicesUniversal Serial Bus USB For More Information on USB Using Multiple USB Devices at the Same TimeThese are some of the things you can do with FireWire FireWireUsing FireWire Devices FireWire Target Disk Mode FireWire Devices and Battery PowerFor More Information on FireWire Inserting and Ejecting a PC Card PC CardsFor More Information on PC Cards How AirPort Provides Wireless Internet Access AirPort Wireless Internet and NetworkingFor More Information on AirPort Ethernet 10/100Base-T For More Information on Using EthernetMaking an Infrared Connection Infrared IrDAFor 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 BatteryCalibrating a New Battery for Best Performance Charging a BatterySwapping Batteries While the Computer Is in Sleep For More Information on Your PowerBook Battery Battery-Saving TipsUse a lighter desktop pattern Inserting Discs DVD DrivePlaying DVD Discs Ejecting a Disc From the DVD DriveFor More Information on Your DVD Drive Keyboard Controls and Programmable Function Keys Using the Standard 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 SpeciﬁcationsModem speed 53 kilobits per second Kbps PowerBook SpecificationsOutput DC 14.4 External monitor in extended desktop mode Page To clean your PowerBook screen, do the following Cleaning Your PowerBookStoring Your PowerBook Cleaning Your PowerBook DisplayPlugging In the Power Adapter Safety Instructions for Setting Up and Using Your ComputerConnecting a Phone Line to the Internal Modem Using Your PowerBookGeneral Safety Instructions Ergonomics Built-in display Wavelength 790 nm Power out of objective lens 3.3 mW