Acer 4120 manual Battery pack characteristics, Maximizing the batterys life

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Battery pack

The computer uses a battery pack that gives you long use between charges.

Battery pack characteristics

The battery pack has the following characteristics:

•Employs current battery technology standards.

•Delivers a battery-low warning.

The battery is recharged whenever you connect the computer to the AC adapter. Your computer supports charge-in-use, enabling you to recharge the battery while you continue to operate the computer.

However, recharging with the computer turned off results in a significantly faster charge time.

The battery will come in handy when you travel or during a power failure. It is advisable to have an extra fully charged battery pack available as backup. Contact your dealer for details on ordering a spare battery pack.

Maximizing the battery's life

Like all other batteries, your computer's battery will degrade over time. This means that the battery's performance will diminish with time and use. To maximize your battery's life, you are advised to adhere to the recommendations set out below.

Conditioning a new battery pack

Before you use a battery pack for the first time, there is a "conditioning" process that you should follow:

1Insert the new battery without turning the computer on.

2Connect the AC adapter and fully charge the battery.

3Disconnect the AC adapter.

4Turn on the computer and operate using battery power.

5Fully deplete the battery until the battery-low warning appears.

6Reconnect the AC adapter and fully charge the battery again.

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Contents Extensa 4420/4120 Series Users GuidePage Information for your safety and comfort Safety instructionsTurning the product off before cleaning Using electrical power Guidelines for safe battery usage Product servicingReplacing the battery pack Potentially explosive environmentsOperating environment Additional safety informationTelephone line safety Medical devicesVehicles Potentially explosive environmentsEmergency calls Disposal instructions Mercury advisoryTips and information for comfortable use Finding your comfort zone Taking care of your visionDeveloping good work habits Your guides Basic care and tips for using your computerFirst things first Turning your computer on and offTaking care of your computer Taking care of your AC adapterTaking care of your battery pack Cleaning and servicingPlease refer to Frequently asked questions on Xvi Contents Using a computer security lock Audio Acer eRecovery Management Page Acer Empowering Technology Empowering Technology passwordAcer eNet Management Empowering Technology To create a new power plan Acer ePower ManagementUsing power plans To switch between power plansTo delete a power plan Battery statusAcer ePresentation Management Acer eDataSecurity Management for selected models Acer eLock Management Empowering Technology Acer eRecovery Management Empowering Technology Acer eSettings Management Windows Mobility Center for Windows Vista only Empowering Technology Your Acer notebook tour Front viewDescription Easy-launch buttons on page 26 for more details Launch buttons on page 26 for more detailsClosed front view Icon DescriptionLeft view # Icon DescriptionRight view Rear viewBase view Specifications English English English Indicators Icon Function DescriptionIcon Easy-launch button Default application Easy-launch buttonsIcon Productivity key Default application Touchpad Touchpad basicsFunction Left Right Main touchpad Center button Button Lock keys and embedded numeric keypad Using the keyboardDesired access Num Lock on Num Lock off Lock key DescriptionWindows keys KeyDescriptionHotkeys Fn + → Hotkey Icon Function Description Fn + ↑Fn + ↓ Fn + ←Euro symbol Special keysUS dollar sign Ejecting the optical CD or DVD drive tray Using a computer security lock Adjusting the volume AudioUsing the system utilities Acer GridVista dual-display compatibleLaunch Manager Norton Internet Security How do I check for viruses?Select Tasks & Scans NTI Shadow Frequently asked questions Nothing appears on the screenImage is not full-screen Infrared port does not work No audio is heard from the computerKeyboard does not respond Printer does not workWant to set up my location to use the internal modem Requesting service International Travelers Warranty ITWBefore you call Battery pack Battery pack characteristicsMaximizing the batterys life Installing and removing the battery pack Charging the battery Checking the battery levelOptimising battery life Battery-low warning Situation Recommended ActionMoving around Disconnecting from the desktopTaking your notebook PC with you Preparing the computerTaking the computer home What to bring to meetingsWhat to take with you Setting up a home office Traveling with the computerSpecial considerations Traveling internationally with the computer What to bring with youUsing a computer security lock Using passwordsSecuring your computer Entering passwords Setting passwordsExpanding through options Connectivity optionsFax/data modem Built-in network feature Fast Infrared FIRUniversal Serial Bus USB Ieee 1394 portPC Card slot Inserting a PC CardEjecting a PC Card Bios utility Boot sequenceInstalling memory Using software Enable disk-to-disk recoveryPassword Playing DVD moviesAcer eRecovery Management Create backupBurn backup disc Restore and recoveryTroubleshooting tips Error messagesError messages Corrective action English Regulations and safety notices FCC noticeOperation conditions Modem notices Remarque à lintention des utilisateurs canadiensDeclaration of Conformity for EU countries TBR List of applicable countriesEnglish Laser compliance statement LCD pixel statementMacrovision copyright protection notice European Union EU Article 3.1a Health and SafetyRadio device regulatory notice General Article 3.1b EMCEnglish FCC RF safety requirement English LCD panel ergonomic specifications USA Acer Computer Shanghai Limited EN60950-12001 EN600652002 applied to models with TV functionIndex English