Aspire Digital 2420 Charging the battery, Checking the battery level, Optimising battery life

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To remove a battery pack:

1Slide the battery release latch to release the battery.

2Pull the battery from the battery bay.

Charging the battery

To charge the battery, first make sure that it is correctly installed in the battery bay. Plug the AC adapter into the computer, and connect to a mains power outlet. You can continue to operate your computer on AC power while your battery is charging. However, charging the battery with the computer turned off results in a significantly faster charge time.

Note: You are advised to charge the battery before retiring for the day. Charging the battery overnight before traveling enables you to start the next day with a fully charged battery.

Checking the battery level

The Windows power meter indicates the current battery level. Rest the cursor over the battery/power icon on the taskbar to see the battery's present charge level.

Optimising battery life

Optimizing battery life helps you get the most out of battery operation, prolonging the charge/recharge cycle and improving recharging efficiency. You are advised to follow the suggestions set out below:

•Purchase an extra battery pack.

•Use AC power whenever possible, reserving battery for on-the-go use.

•Eject a PC Card if it is not being used, as it will continue to draw power (for selected model).

•Store the battery pack in a cool, dry place. The recommended temperature is 10°C (50°F) to 30°C (86°F). Higher temperatures cause the battery to self-discharge faster.

•Excessive recharging decreases the battery life.

•Look after your AC adapter and battery.

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Contents Users Guide Aspire 2920/2920Z/2420 SeriesPage Safety instructions Information for your safety and comfortTurning the product off before cleaning Using electrical power Product servicing Guidelines for safe battery usagePotentially explosive environments Replacing the battery packMedical devices Additional safety informationTelephone line safety Operating environmentPotentially explosive environments VehiclesMercury advisory Emergency calls Disposal instructionsTips and information for comfortable use Taking care of your vision Finding your comfort zoneDeveloping good work habits Federal Communications Comission Declaration of ConformityDeclaration of Conformity Xiv Turning your computer on and off Basic care and tips for using your computerFirst things first Your guidesTaking care of your AC adapter Taking care of your computerCleaning and servicing Taking care of your battery packPlease refer to Frequently asked questions on Xviii Contents Using the keyboard Securing your computer Power management Acer eRecovery Management Empowering Technology password Acer Empowering TechnologyAcer eNet Management Empowering Technology To switch between power plans Acer ePower ManagementUsing power plans To create a new power planBattery status To delete a power planAcer eAudio Management Acer ePresentation Management Acer eDataSecurity Management for selected models Acer eLock Management Empowering Technology Acer eRecovery Management Empowering Technology Acer eSettings Management Windows Mobility Center Top view Your Acer notebook tourIcon Item Description Left view Closed front viewIcon Description Right view Rear view Base view Specifications Wlan English Acpi Function Description IndicatorsIcon Function Description Easy-launch buttonsTouchpad Function Left button Right button 3 Main touchpad Touchpad basicsLock key Description Using the keyboardDesired access Num Lock on Num Lock off Lock keys and embedded numeric keypadKeyDescription Windows keysHotkeys Special keys Euro symbolUS dollar sign Ejecting the optical CD or DVD drive tray Using a computer security lockAudio Adjusting the volumeAcer GridVista dual-display compatible Using the system utilitiesLaunch Manager How do I check for viruses? Norton Internet SecuritySelect Tasks & Scans English Nothing appears on the screen Frequently asked questionsNo audio is heard from the computer Keyboard does not respond Want to set up my location to use the internal modemPrinter does not work English International Travelers Warranty ITW Requesting serviceBefore you call Battery pack characteristics Battery packMaximizing the batterys life Installing and removing the battery pack Checking the battery level Charging the batteryOptimising battery life Situation Recommended Action Battery-low warningAcer Arcade for selected models Settings Finding and playing contentDisplay Settings Player controls Audio SettingsArcade controls Navigation controlsVirtual keyboard Background modeCinema Album Slide Show settingsEditing Pictures Editing video VideoPlaying a video file SnapshotMake DVDs MusicAuthoring CD/DVDs File type compatibility Acer Arcade Deluxe for selected models Remote control for selected models Remote functions DVDivine Starting Acer Arcade DeluxeVideoMagician DV WizardEnglish Preparing the computer Disconnecting from the desktopTaking your notebook PC with you Moving aroundWhat to bring to meetings Taking the computer homeWhat to take with you Traveling with the computer Setting up a home officeSpecial considerations What to bring with you Traveling internationally with the computerUsing passwords Using a computer security lockSecuring your computer Setting passwords Entering passwordsConnectivity options Expanding through optionsFax/data modem Universal Serial Bus USB Built-in network featureInserting an ExpressCard ExpressCardEjecting an ExpressCard Installing memory Password Bios utilityBoot sequence Enable disk-to-disk recoveryPlaying DVD movies Using softwareRegion code Country or region Power management Create backup Acer eRecovery ManagementRestore and recovery Burn backup discEnglish Error messages Troubleshooting tipsError messages Corrective action English FCC notice Regulations and safety noticesOperation conditions Remarque à lintention des utilisateurs canadiens Modem noticesDeclaration of Conformity for EU countries List of applicable countries TBREnglish LCD pixel statement Laser compliance statementMacrovision copyright protection notice Article 3.1b EMC Article 3.1a Health and SafetyRadio device regulatory notice General European Union EUEnglish FCC RF safety requirement English LCD panel ergonomic specifications CD-ROM IndexEnglish