Dell PP20L Conserving Battery Power, Low-Battery Warning, Power Management Modes, Standby Mode

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Check the Battery Health

NOTE: You can check battery health in one of two ways: by using the charge gauge on the battery as described

below or by using the Battery Meter in Dell QuickSet. For information about QuickSet, right-click the icon in the taskbar, and click Help.

To check the battery health using the charge gauge, 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" on page 155 for more information about the battery operating time.

Low-Battery Warning

NOTICE: To avoid losing or corrupting data, save your work immediately after a low-battery warning, and then connect the computer to an electrical outlet. If the battery runs completely out of power, hibernate mode begins automatically.

By default, a pop-up window warns you when the battery charge is approximately 90 percent depleted. You can change the settings for the battery alarms. See "Configuring Power Management Settings" on page 43 for information about accessing QuickSet or the Power Options Properties window.

Conserving Battery Power

Perform the following actions to conserve battery power:

•Connect the computer to an electrical outlet when possible because battery life is largely determined by the number of times the battery is used and recharged.

•Place the computer in standby mode or hibernate mode when you leave the computer unattended for long periods of time. See "Power Management Modes" on page 41 for more information about standby and hibernate modes.

•Use the Power Management Wizard to select options to optimize your computer’s power usage. These options can also be set to change when you press the power button, close the display, or press <Fn><Esc>. See "Configuring Power Management Settings" on page 43 for more information on using the Power Management Wizard.

NOTE: See "Battery Performance" on page 39 for more information on conserving battery power.

Power Management Modes

Standby Mode

Standby mode conserves power by turning off the display and the hard drive after a predetermined period of inactivity (a time-out). When the computer exits standby mode, it returns to the same operating state it was in before entering standby mode.

NOTICE: If your computer loses AC and battery power while in standby mode, it may lose data.

Using a Battery

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Contents W . d e l l . c o m s u p p o r t . d e l l . c o m Dell Inspiron 6400/E1505Abbreviations and Acronyms Contents Microsoft Windows Logo Key Functions Configuring Power Management SettingsComposite Video and S/PDIF Digital Audio What You Need to Establish a Wlan Connection Connecting to a Mobile Broadband NetworkWhat You Need to Establish a Mobile Broadband Double- Clicking the Dell Support IconEnsuring Sufficient Power for Your Computer Mobile Broadband Wireless Wide Area Network WwanIf only part of the display is readable Contents Program stops responding or crashes repeatedly129 109132 131163 164Contents Support.dell.com Finding InformationThese labels are located on the bottom of your computer Configuration Enter your Service Tag or product modelClick the topic that describes your problem What Are You Looking For? Find It HereEarlier operating state without affecting data files Microsoft Windows System Restore MicrosoftShip with your computer Your operating systemAbout Your Computer Determining Your Computer’s ConfigurationAbout Your Computer Front View W E R B U T T O N About Your Computer Y B O a R D a N D W I R E L E S S S T a T U S L I G H T S Left Side View Right Side View Back View Connects an external VGA-compatible monitor Bottom View Connecting to the Internet Setting Up Your ComputerSetting Up Your Internet Connection Setting Up Your ComputerTransferring Information to a New Computer Click Finished and restart the new computer Click Finished and restart the new computer Printer Cable Setting Up a PrinterConnecting a USB Printer Surge Protectors Power Protection DevicesLine Conditioners Uninterruptible Power SuppliesSetting Up Your Computer Adjusting Brightness Using the DisplaySwitching the Video Image Setting Display ResolutionUsing the Display Numeric Keypad Using the Keyboard and Touch PadUsing the Keyboard and Touch Pad Key Combinations Power ManagementSystem Functions Display FunctionsMicrosoft Windows Logo Key Functions Adjusting Keyboard SettingsQuickSet Key Combinations Opens the Search Results-Computer dialog boxCustomizing the Touch Pad Touch PadUsing a Battery Using a BatteryBattery Performance Dell QuickSet Battery Meter Checking the Battery ChargeMicrosoft Windows Power Meter Check the Battery ChargeLow-Battery Warning Conserving Battery PowerPower Management Modes Check the Battery HealthHibernate Mode Configuring Power Management Settings Charging the BatteryReplacing the Battery Storing a Battery Playing CDs or DVDs Using MultimediaUsing Multimedia Copying CDs and DVDs How to Copy a CD or DVDHelpful Tips Using Blank CDs and DVDsCD-Writable Drives Media Type Read Write Rewritable DVD-Writable Drives Media Type Read Write RewritableAdjusting the Volume Using Dell Media Experience and Dell MediaDirect Adjusting the PictureIf the computer is turned on or in standby mode If the computer is turned off or in hibernate modeDell MediaDirect and Dell Media Experience Help Connecting Your Computer to a TV or Audio DeviceUsing Multimedia Video and Standard Audio Video and S/PDIF Digital Audio Composite video adapter Video cable Composite Video and Standard Audio Composite Video and S/PDIF Digital Audio Composite video adapter Pdif digital audio cable Component Video and Standard Audio Using Multimedia Component Video and S/PDIF Digital Audio Component video adapter 2 S/PDIF digital audio cable Enabling S/PDIF Digital Audio Setting Up the Cyberlink CL HeadphonesEnabling the Display Settings for a TV Using Multimedia Installing an ExpressCard Using CardsUsing Cards ExpressCardsRemoving an ExpressCard or Blank Media Memory Cards Installing a Media Memory CardRemoving a Media Memory Card Setting Up a Network Setting Up a NetworkPhysically Connecting to a Network or Broadband Modem Wireless Local Area Network Wlan Network Setup WizardChecking Your Wireless Network Card What You Need to Establish a Wlan ConnectionSetting Up a New Wlan Connecting to a Wireless Local Area Network Completing the Connection to the Wlan Determining the Wireless Network Device ManagerEnabling/Disabling the Wireless Network Card Mobile Broadband or Wireless Wide Area Network WwanConnecting to a Mobile Broadband Network Setting Up a Network Securing Your Computer PasswordsSecurity Cable Lock Securing Your ComputerIf Your Computer Is Lost or Stolen Computer Tracking SoftwareDell Diagnostics Solving ProblemsWhen to Use the Dell Diagnostics Starting the Dell Diagnostics From Your Hard DriveOption Function Tab Function Dell Support Utility Accessing the Dell Support UtilityClicking the Dell Support Icon Double-Clicking the Dell Support IconProblems writing to a CD/DVD-RW drive Drive ProblemsCD and DVD drive problems If you hear an unfamiliar scraping or grinding sound Mail, Modem, and Internet ProblemsHard drive problems Error Messages Characters in filenames Solving Problems Page Ieee 1394 Device Problems ExpressCard ProblemsWindows taskbar. Ensure that the card is listed ManufacturerExternal Keyboard problems Keyboard ProblemsUnexpected characters Lockups and Software ProblemsComputer does not start up Computer stops respondingSolid blue screen appears Dell MediaDirect problemsOther software problems Communication exists. Replace the network cable Memory ProblemsNetwork Problems Mobile Broadband Wireless Wide Area Network Wwan Power ProblemsEnsuring Sufficient Power for Your Computer Printer ProblemsScanner Problems No sound from external speakers Sound and Speaker ProblemsNo sound from integrated speakers If the display is blank Touch Pad or Mouse ProblemsVideo and Display Problems Drivers What Is a Driver?If the display is difficult to read If only part of the display is readableIdentifying Drivers Reinstalling Drivers and UtilitiesUsing Windows XP Device Driver Rollback 101 Using the Drivers and Utilities CDSave and close any open files, and exit any open programs 102 Resolving Software and Hardware IncompatibilitiesRestoring Your Operating System 103 Using Microsoft Windows XP System Restore104 Using Dell PC Restore by Symantec105 Reinstalling Windows XP Using the Operating System CDBefore You Begin 106107 108 Adding and Replacing Parts Adding and Replacing PartsBefore You Begin Recommended Tools110 Before Working Inside Your Computer111 Optical Drive112 Hard Drive113 Returning a Hard Drive to Dell Memory115 116 117 Modem118 Hinge Cover119 Keyboard120 121 Wireless Mini-Card122 Install the replacement Mini-Card123 Coin-Cell Battery 125 Display126 Lift the display up and away from the computer127 Internal Card With Bluetooth Wireless Technology128 Dell QuickSet Features Dell QuickSet Features130 Identifying Your Computer Traveling With Your ComputerPacking the Computer 131Traveling by Air Travel TipsContacting Dell Contacting Dell133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 Website support.ap.dell.com 148Called from within Singapore or Malaysia only 149 150 151 152 Printers, and Projectors for Relationship153 154 155 Specifications156 Ports and ConnectorsIn-1 Media Memory Card Reader MemoryCommunications 157Video AudioDisplay 158159 BatteryKeyboard Touch PadPhysical 160AC Adapter Environmental 161162 Viewing the System Setup Screen Using the System Setup ProgramSystem Setup Screen AppendixCommonly Used Options Changing the Boot SequencePerforming a One-Time Boot Computer, Keyboard, and Display Cleaning Your ComputerTouch Pad 165Floppy Drive Dell Technical Support Policy U.S. OnlyCDs and DVDs 166FCC Notice U.S. Only Definition of Dell-Installed Software and PeripheralsDefinition of Third-Party Software and Peripherals FCC Class B168 Macrovision Product NoticeGlossary Glossary169 170 Docking device See APR 171Device driver See driver 172 173 174 NIC See network adapter 175176 System tray See notification area 177178 Video resolution See resolution179 180 Index Index181 182 See also hard drive See also optical drive183 184 185 186
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