Apple G4 15 manual Swapping Batteries While the Computer Is in Sleep, Charging a Battery

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Swapping Batteries While the Computer Is in Sleep

If your battery runs low while you are working, you can put your PowerBook to sleep and replace the battery with a charged one. The internal backup battery provides enough power to maintain the contents of RAM for about one minute.

Charging a Battery

When the power adapter is connected, the battery is recharged whether the computer is off, on, or in sleep. However, the battery will recharge more quickly if the computer is off or in sleep. You can monitor the battery charge level using the Control Strip.

Battery charge level indicator

Calibrating a New Battery for Best Performance

To get the longest running time from a new PowerBook battery, let the battery run down and then fully charge it one time. Follow these steps:

1Plug in the power adapter and fully charge your PowerBook battery until the battery indicator lights and the onscreen meter indicate that the battery is fully charged.

2Disconnect the power adapter and use your PowerBook until you see the ﬁrst low battery warning.

3Connect the power adapter and leave it connected until the battery is fully charged again.

Important You only have to fully discharge and then charge your battery once to calibrate it. After that, you can connect and disconnect the power adapter when the battery is at any charge level.

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Contents Getting Started Apple Computer, Inc Apple Computer, Inc. All rights reservedContents Battery PowerBook SpeciﬁcationsGetting Started Connecting the Internal Modem Plugging In the ComputerOpening the Display If the computer still doesn’t start up, see Problems Turning the Computer On?Turning the Computer On Tips for Using the Trackpad Moving Items on the ScreenAdjusting the Internal Display Adjusting the Brightness and Display ResolutionAdjusting the Display Resolution About the Resolutions Supported by the Built-In DisplayIf you would like additional information, see the following Where to Go From HereCalibrating Your Battery for Best Performance Shut Down Your PowerBook What to Do When You Are Finished WorkingPut Your PowerBook to Sleep Page If You Are New to the Mac This ChapterBasic 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 Tips and Tricks What You Can DoTo Get Started To Learn MoreITools-Free Internet Services for Mac Users KidSafeWhat You Can Do To Get Started Upload pictures to your iDisk to create custom iCardsIReview Apple.com-Your Starting Place on the World Wide WebApple Support Volume control Play button Favorites drawer QuickTime-Audio and Video on the InternetWhat You Can Do IMovie 2-Create and Edit Your Own Digital Movies PlayheadShare your desktop iMovie with your friends and family Set Schedule Adjust your Software Update schedule Multiple Users-Turn One Mac Into Many AccountsCreate a voice print passphrase Mac Help-Answers to All Your Macintosh Questions Using Your Computer Universal Serial Bus USB Using USB DevicesUSB Devices and Battery Power Using Multiple USB Devices at the Same Time For More Information on USBUsing FireWire Devices FireWireThese are some of the things you can do with FireWire For More Information on FireWire FireWire Devices and Battery PowerFireWire Target Disk Mode For More Information on PC Cards PC CardsInserting and Ejecting a PC Card For More Information on AirPort AirPort Wireless Internet and NetworkingHow AirPort Provides Wireless Internet Access For More Information on Using Ethernet Ethernet 10/100Base-TFor More Information on Infrared Infrared IrDAMaking an Infrared Connection External Video Support VGA and S-Video Connecting an External Monitor Using Your PowerBook With the Display ClosedConnecting a Television, VCR, or Other Video Device For More Information on Using an External Monitor or TVBattery Removing and Replacing the BatterySwapping Batteries While the Computer Is in Sleep Charging a BatteryCalibrating a New Battery for Best Performance Use a lighter desktop pattern Battery-Saving TipsFor More Information on Your PowerBook Battery DVD Drive Inserting DiscsFor More Information on Your DVD Drive Ejecting a Disc From the DVD DrivePlaying DVD Discs Assigning Programmable Function Keys Using the Standard Function KeysKeyboard Controls and Programmable Function Keys Using the Embedded Numeric Keypad For More Information on Keyboard ControlsSecurity Slot and Keyboard Lock For More Information on Security OptionsWorking Inside Your Computer Installing Additional Memory Installing Additional RAMWorking Inside Your Computer Chapter Locate the upper RAM expansion slot Page Working Inside Your Computer Start up your computer Making Sure Your Computer Recognizes the New MemoryInstalling 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 Troubleshooting Information in This ChapterProblems That Prevent You From Using Your Computer Troubleshooting Other Problems Locating Your Product Serial NumberSpeciﬁcations Apple System ProfilerOutput DC 14.4 PowerBook SpecificationsModem speed 53 kilobits per second Kbps External monitor in extended desktop mode Page Storing Your PowerBook Cleaning Your PowerBookTo clean your PowerBook screen, do the following Cleaning Your PowerBook DisplayConnecting a Phone Line to the Internal Modem Safety Instructions for Setting Up and Using Your ComputerPlugging In the Power Adapter Using Your PowerBookGeneral Safety Instructions Ergonomics Built-in display Wavelength 790 nm Power out of objective lens 3.3 mW