Dell Precision M20 User Manual Page 13
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The following icons appear in the Battery Meter window:
For more information about QuickSet, right-click the icon in the taskbar, and click Help.
Microsoft®Windows®Power Meter
The Windows Power Meter indicates the remaining battery charge. To check the Power Meter, double-click the icon on the taskbar. For more information
about the Power Meter tab, see "Power Management."
If the computer is connected to an electrical outlet, a icon appears.
Charge Gauge
Before you insert a battery, press the status button on the battery charge gauge to illuminate the charge-level lights. Each light represents approximately 20
percent of the total battery charge. For example, if the battery has 80 percent of its charge remaining, four of the lights are on. If no lights appear, the battery
has no charge.
Health Gauge
The battery operating time is largely determined by the number of times it is charged. After hundreds of charge and discharge cycles, batteries lose some
charge capacity, or battery health. To check the battery health, press and hold the status button on the battery charge gauge for at least 3 seconds. If no
lights appear, the battery is in good condition, and more than 80 percent of its original charge capacity remains. Each light represents incremental
degradation. If five lights appear, less than 60 percent of the charge capacity remains, and you should consider replacing the battery. See "Specifications" for
more information about the battery operating time.
Low-Battery Warning
A pop-up window warns you when the battery charge is approximately 90 percent depleted. For more information about low-battery alarms, see "Power
Management."
A low-batterywarningoccurswhenthebatterychargeisapproximately90percentdepleted.Thecomputerbeepsonce,indicatingthatminimalbattery
operating time remains. During that time, the speaker beeps periodically. If two batteries are installed, the low-battery warning means that the combined
charge of both batteries is approximately 90 percent depleted. The computer enters hibernate mode when the battery charge is at a critically low level. For
more information about low-battery alarms, see "Power Management."
Charging the Battery
The computer or docking device is running on battery power.
The computer is connected to AC power and the battery is charging.
The computer is connected to AC power and the battery is fully charged.
NOTICE: To avoid losing or corrupting data, save your work immediately after a low-battery warning. Then connect the computer to an electrical outlet,
or install a second battery in the module bay. If the battery runs completely out of power, hibernate mode begins automatically.
- About Your Computer 2
- Left View 4
- Right View 5
- Back View 6
- Bottom View 7
- Appendix 9
- Using a Battery 12
- Charging the Battery 13
- Removing a Battery 14
- Installing a Battery 14
- Storing a Battery 14
- Using the Module Bay 15
- Playing a CD or DVD 18
- Adjusting the Volume 18
- Adjusting the Picture 19
- S-Video and Standard Audio 20
- Cleaning Your Computer 23
- Dell Diagnostics 25
- Dell Diagnostics Main Menu 26
- Using the Display 27
- Large Desktop Display Mode 28
- Windows 2000 29
- Reinstalling Software 30
- Windows XP 32
- Creating a Restore Point 33
- Before You Begin 34
- Reinstalling Windows XP 34
- Finding Information 36
- Operating System CD 37
- Getting Help 39
- Problems With Your Order 40
- Product Information 40
- Before You Call 41
- Contacting Dell 41
- Glossary 50
- Numeric Keypad 58
- Key Combinations 58
- Touch Pad 59
- Passwords 61
- Assigning an Asset Tag 62
- Deleting an Asset Tag 63
- Assigning an Owner Tag 63
- Deleting an Owner Tag 64
- Asset Tag Options 64
- Enabling the TPM Feature 64
- Using PC Cards 66
- Power Management 68
- Power Management Modes 69
- Power Options Properties 70
- Advanced Tab 71
- Hibernate Tab 71
- Dell™QuickSetFeatures 72
- Before You Begin 73
- Memory 74
- Modem 76
- Mini PCI Card 78
- Hard Drive 79
- Keyboard 80
- Coin-Cell Battery 83
- 5. Replace the cover 84
- Back to Contents Page 84
- Overview 85
- System Setup Screen 85
- Commonly Used Options 85
- Changing Printer Modes 86
- Changing COM Ports 86
- Enabling the Infrared Sensor 86
- Using Smart Cards 88
- Solving Problems 89
- Hard drive problems 90
- Error Messages 91
- IEEE 1394 Device Problems 93
- Keyboard Problems 94
- Memory Problems 96
- Network Problems 96
- PC Card Problems 97
- Power Problems 97
- Printer Problems 98
- Scanner Problems 99
- Sound and Speaker Problems 99
- No sound from headphones 100
- Video and Display Problems 101
- Specifications 103
- Identifying Your Computer 108
- Packing the Computer 108
- Travel Tips 108
- Help and Support Center 112
- Desktop Cleanup Wizard 113
- Fast User Switching 114
- Adding User Accounts 114
- Network Setup Wizard 115
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