Acer 7220, 7520G manual Potentially explosive environments, Replacing the battery pack

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discharged hundreds of times, but it will eventually wear out. When the operation time becomes noticeably shorter than normal, buy a new battery. Use only Acer approved batteries, and recharge your battery only with Acer approved chargers designated for this device.

Use the battery only for its intended purpose. Never use any charger or battery that is damaged. Do not short-circuit the battery. Accidental short-circuiting can occur when a metallic object such as a coin, clip or pen causes direct connection of the positive (+) and negative (-) terminals of the battery. (These look like metal strips on the battery.) This might happen, for example, when you carry a spare battery in your pocket or purse. Short-circuiting the terminals may damage the battery or the connecting object.

The capacity and lifetime of the battery will be reduced if the battery is left in hot or cold places, such as in a closed car in summer or winter. Always try to keep the battery between 15°C and 25°C (59°F and 77°F). A device with a hot or cold battery may not work temporarily, even when the battery is fully charged. Battery performance is especially limited in temperatures well below freezing.

Do not dispose of batteries in a fire as they may explode. Batteries may also explode if damaged. Dispose of batteries according to local regulations. Please recycle when possible. Do not dispose as household waste.

Wireless devices may be susceptible to interference from the battery, which could affect performance.

Potentially explosive environments

Switch off your device in any area with a potentially explosive atmosphere and obey all signs and instructions. Potentially explosive atmospheres include areas where you would normally be advised to turn off your vehicle engine. Sparks in such areas could cause an explosion or fire resulting in bodily injury or even death. Switch off the notebook near gas pumps at service stations. Observe restrictions on the use of radio equipment in fuel depots, storage and distribution areas; chemical plants; or where blasting operations are in progress. Areas with a potentially explosive atmosphere are often, but not always, marked. They include below deck on boats, chemical transfer or storage facilities, vehicles using liquefied petroleum gas (such as propane or butane), and areas where the air contains chemicals or particles such as grain, dust or metal powders. Do not switch the notebook on when wireless phone use is prohibited or when it may cause interference or danger.

Replacing the battery pack

The notebook uses lithium batteries. Replace the battery with the same type as that which came bundled with your product. Use of another battery may present a risk of fire or explosion.

Warning! Batteries may explode if not handled properly. Do not disassemble or dispose of them in fire. Keep them away from children. Follow local regulations when disposing of used batteries.

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Contents Aspire 7520G/7520/7220 Series Users GuidePage Page Page 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 XiiFinding 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 Contents Using the system utilities Securing your computer Power management 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 eAudio Management Acer ePresentation Management Acer eDataSecurity Management Acer eLock Management Empowering Technology Acer eRecovery Management Empowering Technology Acer eSettings Management Windows Mobility Center Icon Item Description Your Acer notebook tourTop view See Easy-launch buttons on page 26 for Closed front view Icon DescriptionLeft view DVI-D# Icon Right viewRear view Base view Specifications PlatformStorage Options Compliance Indicators Function DescriptionEasy-launch buttons See Launch Manager on Icon Function DescriptionTouchpad Touchpad basicsFunction Left button Right Main touchpad Center Button Using the keyboard Lock keys and separate numeric keypadLock key Description Fn + F12Windows keys KeyDescriptionHotkeys US dollar sign Euro symbolSpecial keys Using a computer security lock Ejecting the optical CD or DVD drive trayAdjusting the volume AudioUsing Dolby Home Theater for surround/multi-channel sound Set playback as digital outputEnglish Using the system utilities Acer GridVista dual-display compatibleLaunch Manager Select Tasks & Scans Norton Internet SecurityHow do I check for viruses? No audio is heard from the computer Frequently asked questionsNothing appears on the screen Printer does not work Want to set up my location to use the internal modemKeyboard does not respond Recovery CDs 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 ActionAcer Arcade for selected models Display Settings Finding and playing contentSettings Audio Settings Arcade controlsNavigation controls Player controlsBackground mode Virtual keyboardCinema Editing Pictures Slide Show settingsAlbum Video Playing a video fileCapturing video TV models only SnapshotMusic TV for selected models Time-shift functionalityTV settings Recorded TVScheduling recordings Program guideUsing TeleText functions Signal settingsChannel settings Recording settingsEnglish Acer Arcade Deluxe for selected models Remote control for selected models Remote functions Starting Acer Arcade Deluxe VideoMagicianTV Joy selected models only SportsCap selected models onlyDV Wizard DVDivineDisconnecting 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 Universal Serial Bus USBIeee 1394 port Ejecting an ExpressCard ExpressCardInserting an ExpressCard Installing memory Acer DVB-T digital antenna Connecting your TV and AV-in cables for selected modelsPAL/SECAM and Ntsc systems To set up the antenna AV-in cable Bios utility Boot sequenceEnable disk-to-disk recovery PasswordRegion code Country or region Using softwarePlaying DVD movies Power management Acer 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 Federal Communications Comission Declaration of Conformity ICY70Acer Computer Shanghai Limited EN60950-12001 EN600652002 applied to models with TV functionLCD panel ergonomic specifications Index CD-ROMEnglish
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