Lenovo V480, V580 Using the ac power adapter and the battery pack, Checking the battery status

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To put the computer into sleep mode, do either of the following:

•Click and select Sleep from the Start menu. Then click OK.

•Press Fn+F1.

Note: Wait until the power indicator starts blinking (indicating that the computer is in sleep state) before you move the computer. Moving the computer while the hard disk drive is spinning can damage the hard disk drive, causing loss of data.

To wake up the computer, do either of the following:

•Press the power button.

•Press any key on the keyboard.

Shutting down the computer

If you are not going to use the computer for a day or two, shut it down.

To shut down the computer, do the following:

1.Click .

2.Select Shut down from the Start menu. Then click OK.

Using the ac power adapter and the battery pack

This topic provides information about how to use the ac power adapter and the battery for your computer.

Checking the battery status

The battery gauge in the Windows notification area displays the percentage of battery power remaining.

The rate at which you use battery power will determine how long you can use the battery between charges. Because 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:

•How much energy is stored in the battery when you begin to work.

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

Using the ac power adapter

The power to run your computer can come either from the lithium-ion battery pack provided with it, or from ac power through the ac power adapter. While you use ac power, the battery charges automatically.

The ac power adapter has two basic components:

1.The transformer pack that converts ac power adapter for use with the computer.

2.The power cord that plugs into the ac outlet and into the transformer pack.

Attention: Using an improper power cord could cause severe damage to the computer.

Connecting the ac power adapter

To connect the ac power adapter, do the following:

1.Connect the ac power adapter to the power jack of the computer.

2.Connect the power cord to the transformer pack.

3.Plug the power cord into an electrical outlet.

Chapter 2. Using your computer 13

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Contents Lenovo V480, V480c, V580, and V580c User GuideSafety and Warranty Guide Regulatory Notice Contents Appendix C. Notices Protect yourself from the heat that your computer generates Read this firstPrevent your computer from getting wet Protect the cables from being damagedProtect your computer and data when moving it Important safety informationConditions that require immediate action Handle your computer gentlyService and upgrades Safety guidelinesExtension cords and related devices Power cords and power adaptersExternal devices Power supply statementPlugs and outlets Rechargeable battery notice General battery noticeLithium coin cell battery notice Heat and product ventilation CD and DVD drive safety Electrical current safety informationLiquid crystal display LCD notice Using headphones or earphonesLaser compliance statement Additional safety information Xiv User Guide Top view Getting to know your computerPower button Wireless module antennasOneKey Recovery Pro program button Status indicatorsLeft-side view Front view Right-side viewBottom view Status indicators Power and battery status indicator FeaturesLenovo V480 and V480c SpecificationsLenovo V580 and V580c User Guide Frequently asked questions Using your computerConnecting to power Tips on using your computerConfiguring the operating system Putting your computer into sleep mode or shutting it downChecking the battery status Using the ac power adapter and the battery packUsing the ac power adapter Connecting the ac power adapterMaximizing the battery life Charging the batteryHandling the battery Tips on using the ac power adapterUsing the touch pad Using the touch pad or click padUsing the click pad Using the keyboardNumeric keypad V480 and V480cV580 and V580c OneKey Recovery Pro program buttonFunction key combinations Connecting to external devicesUsing Bluetooth Using the media card readerUsing USB connectors Switching the Graphics Processing Unit Using the Nvidia Optimus Graphics featureWired connection Connecting to the networkHardware connection CableWireless connection Software configurationConnecting to the network User Guide Ergonomic information Accessibility and comfortYou and your computer What if you are traveling? Using a fingerprint reader Using passwordsUsing the Active Protection System SecurityUser Guide Solving recovery problems OneKey Recovery ProUser Guide Static electricity prevention Replacing the batteryReplacing devices Replacing the backup battery Replacing devices Lenovo V580 and V580c Replacing the hard disk drive Prerequisites for the procedureUser Guide Lenovo V580 and V580c Replacing the keyboard Replacing devices Lenovo V580 and V580c Replacing devices Replacing a memory module Replacing devices Lenovo V580 and V580c Replacing the mSATA solid state drive User Guide Lenovo V480 and V480c Lenovo V580 and V580c Replacing devices Replacing the optical drive Lenovo V580 and V580c User Guide General tips for preventing problems Preventing problemsTaking care of your computer Be careful about where and how you workBe gentle with your computer Carry your computer properlyClean the cover of your computer Take care in setting passwordsHandle storage media and drives properly Data protectionCleaning your computer display Cleaning your computer keyboardRegister your computer Be sure not to modify your computerTroubleshooting Troubleshooting computer problemsBattery and power problems Battery problemsAn ac power adapter problem Computer screen problemsStartup problem Sleep and hibernation problemsHard disk drive problems Problems with drives and other storage devicesOptical drive problems OneKey Rescue system problemsPassword problem Other problems Sound problemYour computer does not respond Computer does not start from a device you wantUser Guide Appendix A. Regulatory information Wireless related informationWireless interoperability Usage environment and your health Export classification noticeElectronic emission notices Deutschland Industry Canada Class B emission compliance statementUser Guide Japan recycling statements Appendix B. Weee and recycling statementsChina Weee statement EU Weee statements Disposing of a Lenovo computer components Recycling information for BrazilBattery recycling information for the European Union User Guide Appendix C. Notices Trademarks Index User Guide