Lenovo B550 manual Using AC adapter and battery, Checking battery status, Charging the battery

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Chapter 2. Learning the basics

Using AC adapter and battery -------------------------------------------------------------------------------

Checking battery status

You can determine the percentage of battery power remaining by checking the battery icon in the notification area.

Note: As each computer user has different habits and needs, it is difficult to predict how long a battery charge will last. There are two main factors:

•The amount of energy stored in the battery when you commence work.

•The way you use your computer: for example, how often you access the hard disk drive and how bright you make the computer display.

Charging the battery

When you find that the battery power is low, you need to charge the battery or replace it with a fully charged one.

You need to charge the battery in any of the following situations:

•When you purchase a new battery

•If the battery status indicator starts blinking

•If the battery has not been used for a long time

Notes:

•You are advised to insert the battery pack when using your computer to prevent small particles from entering the inside of your computer.

•To increase the life of the battery pack, the computer does not start recharging the battery immediately after it drops from fully charged.

•Charge the battery at a temperature between 50 °F and 80 °F (10 °C-30 °C).

•Full charge or discharge is not required.

Removing the battery pack

If you are not going to use the computer for an extended period of time, or if you need to send your computer to Lenovo for service, etc. remove the battery pack from the computer. Before removing the battery pack, make sure the computer has been shut down.

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Contents Lenovo B550 First Edition January Copyright Lenovo Dear user Explanation of hard disk capacity Contents Important safety information Important safety information„ Read this first UnpackCorrect usage procedures Important safety informationService and upgrades Getting to know your computer System status Getting to know your computer Power buttonSelect models only TouchpadFan louvers Getting to know your computerRJ-45 port VGA portOptical drive USB portMicrophone jack Headphone jack Speakers Spring loaded Hard disk drive Battery latch Manual Battery pack „ Configuring the operating system „ Connecting to the powerLearning the basics „ Reading the manualsPutting your computer into sleep state „ Shutting down your computerLearning the basics „ Checking battery status Using AC adapter and battery„ Charging the battery „ Removing the battery packLeft click button „ Handling the battery„ Function key combinations „ Numeric keypadLearning the basics OneKey Rescue system button E f System status indicators„ Attaching a security lock not supplied „ Using VeriFace„ Using passwords „ Connecting a universal serial bus USB device Connecting external devices„ Connecting a Bluetooth enabled device select models only Enabling Bluetooth communications„ Hardware connection Using the Internet„ Software configuration „ Using Wi-Fi/WiMAX Wireless connectionUsing the Internet Enabling wireless connection„ Introduction OneKey Rescue systemFrequently asked questions TroubleshootingWhat can I do if the backup process fails? TroubleshootingPassword problem Display problemsComputer screen problems Troubleshooting Sleep or hibernation problemsBattery problems Troubleshooting Sound problemsHard disk drive problem Startup problemTroubleshooting Other problems Upgrading and replacing devices Replacing the batteryTo replace the battery, do the following Upgrading and replacing devices Replacing the hard disk driveHandling a hard disk drive To replace the hard disk drive, do the followingUpgrading and replacing devices To install an SO-DIMM, do the following Upgrading and replacing devices To remove the optical drive, do the following Removing the optical driveUpgrading and replacing devices Calling the customer support center Appendix A. Getting help and serviceGetting help around the world Appendix A. Getting help and serviceWarranty Service Telephone Numbers Lenovo warranty service telephone numbersAppendix B. Use, and care information „ Be careful about where and how you workCaring for your computer „ Notice of static-electricity„ Carry your computer properly „ Be gentle with your computer„ For outdoor use „ Handle storage media and drives properly„ Other important tips „ Data safety„ Take care in setting passwords „ Questions about vision? „ Ergonomic information„ What if you are traveling? „ General tips for maintenance „ Cleaning your computer display „ Cleaning the cover of your computer„ Cleaning your computer keyboard „ What this warranty covers Appendix C. Lenovo limited warranty„ How to obtain warranty service „ What your service provider will do to correct problems„ Your additional responsibilities „ Replacement of a product or partAppendix C. Lenovo limited warranty „ Limitation of liability „ What this warranty does not cover„ Use of personal information „ European Economic Area EEA „ Dispute resolution„ Other rights „ Suplemento de Garantía para México Lenovo Technology B.V. Turkiye Istanbul Subesi „ Lenovo Turkey addressCustomer Replaceable Unit CRU Service On-site Service „ Types of warranty serviceCourier or Depot Service Customer Carry-In or Mail-In ServiceAppendix C. Lenovo limited warranty Product Exchange Service Appendix D. Customer replaceable units CRUs Appendix E. Notices Appendix E. Notices „ Export classification noticeWindows XP Energy Star model informationWindows „ Wireless interoperability Wireless related information„ Usage environment and your health „ Safety information related to Mobile BroadbandTV tuner information Appendix E. Notices „ Federal Communications Commission FCC Statement Electronic emissions notices„ German Class B Compliance Statement „ Industry Canada Class B Emission Compliance Statement„ Avis de conformité à la réglementation d’Industrie Canada „ European Union Compliance Statement Class B Compliance Turkish statement of compliance Türkiye EEE Yönetmeliğine Uygunluk BeyanıWeee and recycling statements „ Disposing of a Lenovo Computer Components Japan recycling statementsEU Weee statements Appendix E. Notices Appendix F. Features and specifications Trademarks Index Index Page Do not Return IT to the Store New World. New Thinking.TM