Apple PowerBook G4 (12-inch, 1.5 GHz) User Manual Page 49
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Chapter 3 Using Your Computer 49
Battery
When the external power adapter is not connected, your computer draws power from
its battery. Depending on the applications you use and external devices connected to
your PowerBook, you may find that the length of time that you can run your
PowerBook off one battery charge varies. Turning off certain features such as AirPort
Extreme or Bluetooth® wireless technology can help to conserve battery life. For more
information about using your battery, see “Battery-Conservation Tips” on page 51.
You can determine the charge left in your battery by looking at the battery level
indicator lights on the battery itself. Press the button next to the lights and 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. You can check the charge with the battery in
or out of your PowerBook.
If your battery runs low while you are working, you can shut down your PowerBook
and replace the battery with a charged one.
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 to let the battery recharge, or
replace the drained battery with a fully charged battery (see page 50).
If the battery icon in the Finder menu bar is set to show the percentage of charge, you
may sometimes notice that the battery does not maintain a full charge of 100% when
the power adapter is attached. When the battery level eventually drops below 95
percent, it will charge all the way to 100 percent. This saves battery life as charging is
not continuously cycled on and off.
Battery
Battery LEDs
LL3093.book Page 49 Friday, February 4, 2005 5:50 PM
- PowerBook G4 12-inch 1
- User’s Guide 1
- Contents 3
- Getting Started 5
- 6 Chapter 1 6
- Getting Started 6
- H FireWire 400 8
- Setting Up 10
- W Internal modem port 13
- Ethernet cord 14
- Ethernet port 14
- (10/100Base-T) 14
- ® Power button 14
- Trackpad 16
- Trackpad button 16
- Shutting Down Your PowerBook 17
- Calibrating Your Battery 18
- What’s Next? 18
- Other Support 19
- The Basics 21
- Adjusting Your Display 22
- Using Your Power Adapter 23
- Using the Trackpad 24
- Using the Keyboard 25
- Using a Mouse 25
- Learning About Mac OS X 26
- Using Applications 27
- Connecting to a Printer 27
- Monitoring Printing 28
- Chapter 2 The Basics 29 29
- Connecting to a Network 30
- Using the Internet 30
- When an Application Freezes 31
- Using Your Computer 33
- Universal Serial Bus (USB) 34
- For More Information on USB 35
- FireWire 36
- FireWire Target Disk Mode 37
- Using Bluetooth Devices 38
- Connection to 40
- AC outlet AirPort Express 40
- DSL or cable 40
- Ethernet (10/100Base-T) 41
- Using Your Modem 42
- Mini-DVI 43
- Sudden Motion Sensor 45
- Using Your Optical Drive 46
- Ejecting a Disc 47
- Playing DVD Discs 47
- For More Information 48
- Battery 49
- Battery Latch 50
- Charging a Battery 51
- Battery-Conservation Tips 51
- Security Slot 52
- Adding Memory 55
- Troubleshooting 61
- Other Problems 63
- Installing Applications 65
- Using Apple Hardware Test 66
- Installing Xcode Tools 67
- Specifications 69
- Cleaning Your PowerBook 71
- Carrying Your PowerBook 71
- Storing Your PowerBook 71
- Your Computer 72
- General Safety Instructions 73
- Connectors and Ports 74
- Avoid Hearing Damage 74
- Apple and the Environment 74
- Ergonomics 75
- Connecting to the Internet 77
- Entering Your Information 80
- Connections 80
- Manual Configuration 84
- DHCP Configuration 85
- PPPoE Configuration 86
- PPPoE Connections 91
- Network Connections 92
- Top Ten Questions 93
- FCC Compliance Statement 97
- Bluetooth Information 97
- Industry Canada Statement 97
- VCCI Class B Statement 97
- Class 1 label 98
- Service warning label 98
- Â Telephone jack type: CA-11 99
- 101 101
- 103 103
- 104 Index 104
- Index 105 105
- 106 Index 106
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