Lenovo 8805, 8814, 8810, 8801, 8793, 8797, 8011 manual Changing the battery

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Changing the battery

Your computer has a special type of memory that maintains the date, time, and settings for built-in features, such as parallel-port assignments (configuration). A battery keeps this information active when you turn off the computer.

The battery normally requires no charging or maintenance throughout its life; however, no battery lasts forever. If the battery fails, the date, time, and configuration information (including passwords) are lost. An error message is displayed when you turn on the computer.

Refer to “Lithium battery notice” on page x for information about replacing and disposing of the battery.

To change the battery:

1.Open the computer cover. See “Opening the cover” on page 21.

2.While holding the left rear of the computer chassis down, pull upward on the handle provided to remove the PCI riser and any adapters that are currently installed.

3.Locate the battery. See “Identifying parts on the system board” on page 23.

4.Remove the old battery.

Chapter 3. Installing options 37

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Contents User Guide Types 8011, 8793, 8797 Types 8805, 8810 Page User Guide Types 8011, 8793, 8797 Types 8805, 8810 Page Contents Appendix B. Notices Conditions that require immediate action Important safety informationService General safety guidelinesPower cords and power adapters Batteries Extension cords and related devicesPlugs and outlets Heat and product ventilation CD and DVD drive safetyLithium battery notice Additional safety informationLaser compliance statement Modem safety informationPower supply statement Introduction Xiv User Guide Glare and lighting Arranging your workspaceComfort Electrical outlets and cable lengths Air circulationConnecting your computer Setting up your computerUser Guide Setting up your computer 1394 Setting up your computer Completing important tasks Turning on powerFinishing the software installation Updating your operating system Installing other operating systemsUpdating your antivirus software Shutting down the computerUser Guide Features Installing optionsInternal drives Operating systems, preinstalled varies by model Available options Environment SpecificationsSupported operating positions Handling static-sensitive devices Tools requiredLocating connectors on the front of your computer Installing external optionsLocating connectors on the rear of your computer Obtaining device drivers Connector DescriptionOpening the cover Locating components Identifying parts on the system board Installing memory What to do next Installing PCI adaptersUser Guide Installing internal drives Drive specifications Installing a drive in bay Connecting drives Connecting additional serial ATA hard disk drive Installing a diskette drive in bay What to do next Identifying security locks Security featuresRope Clip Integrated cable lock Password protection Changing the battery Erasing a lost or forgotten password clearing Cmos Closing the cover and connecting the cables User Guide Creating and using product recovery discs Recovering softwareTo use Product Recovery discs, do the following Backup and recoveryUsing the Rescue and Recovery workspace Creating and using rescue media Solving recovery problemsTo create rescue media, do the following Creating and using a Recovery Repair disketteSetting a rescue device in the startup sequence Recovering or installing device driversRecovering software User Guide Starting the Setup Utility program Using the Setup UtilityViewing and changing settings Using passwordsAdministrator Password User PasswordSetting, changing, and deleting a password Selecting a startup deviceChanging the startup device sequence Advanced settingsExiting from the Setup Utility program User Guide Updating system programs Using system programsUpdating flashing Bios from a diskette User Guide Basic troubleshooting Troubleshooting and diagnosticsDiagnostic programs PC-Doctor for DOS PC-Doctor for WindowsRunning diagnostics from the CD or diskettes Cleaning the mouseNon-optical mouse Optical mouseUser Guide Information resources Getting information, help, and serviceOnline Books folder ThinkVantage Productivity CenterHelp and service Access HelpWarranty and safety Calling for service Using the documentation and diagnostic programsPurchasing additional services Using other servicesBasic AT commands Appendix A. Manual modem commandsLow speaker volume Enable RTS/CTS hardware flow control Extended AT commands+MS=? MNP/V.42/V.42bis/V.44 commandsFax Class 2 commands Fax Class 1 commandsVoice commands Appendix A. Manual modem commands User Guide Appendix B. Notices Trademarks Television output noticeIndex Page Page Part Number

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