Acer 4120 manual 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 to 30°C. 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 Extensa 4420/4120 Series Users GuidePage Turning the product off before cleaning Information for your safety and comfortSafety instructions Using electrical power Guidelines for safe battery usage Product servicingReplacing the battery pack Potentially explosive environmentsAdditional safety information Telephone line safetyOperating environment 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 Basic care and tips for using your computer First things firstYour guides Turning your computer on and offTaking care of your computer Taking care of your AC adapterPlease refer to Frequently asked questions on Taking care of your battery packCleaning and servicing Xvi Contents Using a computer security lock Audio Acer eRecovery Management Page Acer Empowering Technology Empowering Technology passwordAcer eNet Management Empowering Technology Acer ePower Management Using power plansTo create a new power plan 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 Description Your Acer notebook tourFront view 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 Using the keyboard Desired access Num Lock on Num Lock offLock keys and embedded numeric keypad Lock key DescriptionWindows keys KeyDescriptionHotkeys Hotkey Icon Function Description Fn + ↑ Fn + ↓Fn + → Fn + ←US dollar sign Euro symbolSpecial keys 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 Select Tasks & Scans Norton Internet SecurityHow do I check for viruses? NTI Shadow Image is not full-screen Frequently asked questionsNothing appears on the screen No audio is heard from the computer Keyboard does not respondInfrared port does not work Printer does not workWant to set up my location to use the internal modem Before you call Requesting serviceInternational Travelers Warranty ITW Maximizing the batterys life Battery packBattery pack characteristics Installing and removing the battery pack Optimising battery life Charging the batteryChecking the battery level Battery-low warning Situation Recommended ActionDisconnecting from the desktop Taking your notebook PC with youMoving around Preparing the computerWhat to take with you Taking the computer homeWhat to bring to meetings Special considerations Setting up a home officeTraveling with the computer Traveling internationally with the computer What to bring with youSecuring your computer Using a computer security lockUsing passwords Entering passwords Setting passwordsFax/data modem Expanding through optionsConnectivity options Built-in network feature Fast Infrared FIRUniversal Serial Bus USB Ieee 1394 portEjecting a PC Card PC Card slotInserting a PC Card Installing memory Bios utilityBoot sequence Enable disk-to-disk recovery PasswordUsing software Playing DVD moviesAcer eRecovery Management Create backupBurn backup disc Restore and recoveryError messages Corrective action Troubleshooting tipsError messages English Operation conditions Regulations and safety noticesFCC notice Declaration of Conformity for EU countries Modem noticesRemarque à lintention des utilisateurs canadiens TBR List of applicable countriesEnglish Macrovision copyright protection notice Laser compliance statementLCD pixel statement Article 3.1a Health and Safety Radio device regulatory notice GeneralEuropean Union EU 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