Using a Battery, Battery Performance | Dell JU373 guide

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Using a Battery

Battery Performance

NOTE: For information about the Dell warranty for your computer, see the Product Information Guide or separate paper warranty document that shipped with your computer.

For optimal computer performance and to help preserve BIOS settings, operate your Dell™ portable computer with the main battery installed at all times. One battery is supplied as standard equipment in the battery bay.

NOTE: Because the battery may not be fully charged, use the AC adapter to connect your new computer to an electrical outlet the first time you use the computer. For best results, operate the computer with the AC adapter until the battery is fully charged. To view battery charge status, check the Power Meter in Power Options (see "Accessing Power Options Properties" on page 44).

Battery operating time varies depending on operating conditions.

Battery operating time varies depending on operating conditions. You can install an optional second battery in the media bay to significantly increase operating time.

NOTE: Battery operating time (the time the battery can hold a charge) decreases over time. Depending on how often the battery is used and the conditions under which it is used, you may need to purchase a new battery during the life of your computer.

NOTE: It is recommended that you connect your computer to an electrical outlet when writing to a CD or DVD.

Operating time is significantly reduced when you perform operations including, but not limited to, the following:

•Using optical drives.

•Using wireless communications devices, PC Cards, Express Cards, media memory cards, or USB devices.

•Using high-brightness display settings, 3D screen savers, or other power- intensive programs such as complex 3D graphics applications.

Using a Battery

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Dell JU373 manual Using a Battery, Battery Performance

Contents

User’s Guide August JU373 Contents Customizing the Touch Pad Contents Accessing Power Options Properties Using a Monitor as Your Primary Display Microsoft Windows Firewall Checking Your Wireless Network CardMobile Broadband/Wireless Wide Area Network Wwan Installing a PC Card or ExpressCard 103 101 Viewing the System Setup Screens When to Use the Dell Diagnostics 142 124127 141 Macrovision Product Notice Automated Order-Status Service Contents Contents What Are You Looking For? Find It Here Finding Information At support.dell.com May not ship with your computer What Are You Looking For? Service Tag and Microsoft Windows License Label Dell Support Website support.dell.com Dell Support Utility Windows Help and Support Operating System Media Finding Information Front View About Your Computer Power button About Your Computer Y B O a R D S T a T U S L I G H T S Left Side View D I O C O N N E C T O R S Back View Right Side View Network connector RJ-45 Connects serial devices, such as a mouse or handheld device About Your Computer Bottom View About Your Computer Setting Up Your Computer Transferring Information to a New ComputerMicrosoft Windows XP To prepare a new computer for the file transfer Setting Up Your Computer Microsoft Windows Vista Turning Off Your Computer Setting Up Your Computer Battery Performance Using a Battery Dell QuickSet Battery Meter Checking the Battery Charge Charge Gauge Microsoft Windows Power MeterCheck the Battery Charge Check the Battery Health Low-Battery Warning Conserving Battery Power Power Management Modes Standby and Sleep ModeHibernate Mode Windows Vista Configuring Power Management SettingsAccessing Power Options Properties Windows XP Replacing the Battery Charging the Battery Storing a Battery Numeric Keypad Using the Keyboard CD or DVD Tray BatteryKey Combinations System Functions Power Management Speaker FunctionsMicrosoft Windows XP Logo Key Functions TAB Microsoft Windows Vista Logo Key Functions Touch Pad Customizing the Touch Pad Using the Display Adjusting BrightnessUsing a Projector Windows Vista Using Both a Monitor and Your Computer Display Click the Settings tab→ Advanced→ Displays tab Using a Monitor as Your Primary Display Windows Vista Using the Display Playing CDs or DVDs Using Multimedia DVD player includes the following basic buttons Adjusting the Volume Connecting Your Computer to a TV or Audio Device Adjusting the Picture Video TV-out connector Connector Output connector Video and Standard Audio Video and S/PDIF Digital Audio Composite video adapter Composite Video and Standard Audio Standard audio cable Composite Video and S/PDIF Digital Audio Composite video adapter Component Video and Standard Audio Component video adapter Component Video and S/PDIF Digital Audio Component video adapter Enabling S/PDIF Digital Audio Enabling S/PDIF in the Windows Audio Driver Setting Up the Cyberlink CL Headphones Click Advanced Enabling the Display Settings for a TV Connecting a Network or Broadband Modem Cable Setting Up and Using Networks What You Need to Establish a Wlan Connection Wireless Local Area Network Wlan Checking Your Wireless Network Card Start Button and Connect To OptionOrder Confirmation for Your Computer Setting Up and Using Networks Determining the Wireless Network Device Manager Connecting to a Wlan Completing the Connection to the Wlan Click Start→ Settings→ Control Panel→ Network Connections Enabling/Disabling the Wireless Network Card Mobile Broadband/Wireless Wide Area Network Wwan Checking Your Dell Mobile Broadband Card Microsoft Windows Firewall Connecting to a Mobile Broadband Network Setting Up and Using Networks Card Types Using Cards Installing a PC Card or ExpressCard Card BlanksExtended Cards Using Cards Removing a Card or Blank Security Cable Lock PasswordsAbout Passwords Securing Your Computer Type of Password Features Using a Primary or System Password Using an Administrator Password Trusted Platform Module TPM Using a Hard Drive Password Security Management Software Enabling the TPM Feature Using the Security Management Software Computer Tracking SoftwareActivating the Security Management Software If Your Computer Is Lost or Stolen 100 Computer, Keyboard, and Display Cleaning Your Computer Floppy Drive CDs and DVDs102 When to Use the Dell Diagnostics TroubleshootingDell Technical Update Service Dell Diagnostics 104 Dell Diagnostics Main Menu 105Option Function 106 OptionTab Function 107 Accessing the Dell Support UtilityDell Support Utility Clicking the Dell Support Icon 108 Solving ProblemsDrive Problems Double-Clicking the Dell Support Icon 109 Optical drive problemsProblems writing to an optical drive Hard drive problems 110 Mail, Modem, and Internet Problems 111 Error Messages 112 Ieee 1394 Device Problems Lockups and Software Problems 114 Other software problemsProgram is designed for an earlier Windows operating system Solid blue screen appears Memory Problems Network Problems115 116 Power Problems 117 Printer Problems Scanner Problems Sound and Speaker ProblemsNo sound from speakers 118 Touch Pad or Mouse Problems No sound from headphones119 120 Video and Display ProblemsIf the display is blank Display is blank If the display is difficult to read If only part of the display is readable121 122 Windows Vista, click Start → Help and Support System Setup ProgramOverview 123 Commonly Used Options Viewing the System Setup ScreensSystem Setup Screens Changing the Boot Sequence 125 Performing a One-Time Boot Changing COM Ports Enabling the Infrared Sensor126 Identifying Drivers Reinstalling SoftwareWhat Is a Driver? Drivers 128 Reinstalling Drivers and UtilitiesUsing Windows Device Driver Rollback Microsoft Windows Vista 129 Using the Drivers and Utilities Media 130 Manually Reinstalling Drivers 131 Restoring Your Operating System Using Microsoft Windows System Restore Starting System Restore132 Undoing the Last System Restore Enabling System Restore133 Using Dell PC Restore and Dell Factory Image Restore Windows XP Dell PC Restore134 135 136 Windows Vista Dell Factory Image Restore 137 Using the Operating System MediaReinstalling Windows XP or Windows Vista Before you Begin 138 139 Dell QuickSet 140 141 Traveling With Your ComputerIdentifying Your Computer Packing the Computer Travel Tips Traveling by Air142 Getting Help Obtaining Assistance143 Technical Support and Customer Service DellConnect Online Services144 145 Problems With Your OrderAutoTech Service Automated Order-Status Service 146 Before You Call 147 148 Diagnostics Checklist 149 Contacting Dell 150 System Information Specifications151 Processor Ports and Connectors 152Memory Audio 153Communications Video Display 154 Touch Pad Battery155 Keyboard AC Adapter 156 157 PhysicalEnvironmental 158 159 AppendixFCC Notice U.S. Only FCC Class B 160 Macrovision Product Notice 161 Glossary 162 Product ID 163 164 165 166 167 168 Module bay See media bay 169 NIC See network adapter 170 171 172 173 174 175 Video resolution See resolution 176