Lenovo 628323U manual Power management, Checking the battery status, Using the ac power adapter

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• Enable the simple scrolling function.

To change your touch pad settings, click the status area in the lower-right corner of the screen, then go to Settings ➙ Device. Change the settings as desired.

Power management

When you need to use your computer away from electrical outlets, you depend on battery power to keep your computer running. Different computer components consume power at different rates. The more you use the power-intensive components, the faster you consume battery power. With ThinkPad batteries, you will be able to work longer without being tied to an electrical outlet.

Checking the battery status

The battery status icon in the lower-right corner of the screen displays the percentage of battery power remaining. To check for detailed battery status information, click the battery status icon.

The rate at which you use battery power will determine how long you can use the battery of your computer 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. For example:

–How bright you make the computer display.

–How often you use the wireless features.

Using the ac power adapter

The power to run your computer can come either from the lithium-ion (Li-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 that comes with your computer has two basic components:

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

•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 your computer.

Connecting the ac power adapter

Be sure to take the following steps in the order to connect the ac power adapter.

1.Plug the power cord into an electrical outlet.

2.Connect the power cord to the transformer pack.

3.Insert the power jack into the computer.

Tips on using the ac power adapter

You can check the status of your battery at any time by looking at the battery meter at the bottom of your display.

•When the ac power adapter is not in use, disconnect it from the electrical outlet.

•Do not bind the power cord tightly around the ac power adapter transformer pack when it is connected to the transformer.

•Before you charge the battery, make sure that its temperature is at least 10°C (50°F).

Chapter 2. Using your computer 15

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Contents User Guide Safety, Warranty, and Setup Guide Regulatory Notice Contents Appendix B. Weee and recycling Statements Protect yourself from the heat that your computer generates Read this firstPrevent your computer from getting wet Protect the cables from being damagedConditions that require immediate action Important safety informationHandle your computer gently Carry your computer carefullyService and upgrades Safety guidelinesExtension cords and related devices Power cords and power adaptersExternal devices Power supply statementPlugs and outlets Rechargeable battery notice General battery noticeHeat and product ventilation Electrical current safety informationLiquid crystal display LCD notice Using headphones or earphonesAdditional safety information Xii User Guide Product overview Locating computer controls, connectors, and indicatorsFront view CameraPower button System status indicatorRight-side view MicrophonePower status indicator USB 2.0 connectorAc power connector Media card reader slotUSB 3.0 connectors VGA connectorEthernet connector Left-side viewBottom view Status indicatorsSystem status indicators User Guide Power status indicator Wireless status indicatorLocating important product information Machine type and model labelFCC ID and IC Certification number label Specifications FeaturesBattery pack Power source ac power adapterBattery life Operating environmentFrequently asked questions Using your computerHow can I use the battery power more effectively? Registering your computerHow do I attach or replace a device? Special keysHow do I give presentations or attach an external monitor? Using the TrackPoint pointing device Using the UltraNav pointing deviceCustomizing the touch pad Using the touch padChanging the cap Checking the battery status Power managementUsing the ac power adapter Connecting the ac power adapterMaximizing the battery life Charging the batteryPower-saving modes Handling the batteryUsing your computer Establishing wireless LAN connections Connecting to a wireless LANGo to Settings Internet connection Wi-Fi network Wireless LAN connection statusTips for using the wireless LAN feature Connecting a projector or an external monitorConnecting an external monitor Attaching an external monitorUsing a flash media card Using audio featuresUsing the camera Removing a flash media card Inserting a flash media cardUser Guide Ergonomic information Accessibility and comfortYou and your computer Comfort Accessibility informationTraveling with your computer Travel accessoriesTravel tips Assistive technologiesUser Guide Static electricity prevention Replacing the batteryReplacing devices User Guide Before you start, print these instructions User Guide Replacing devices Replacing a memory module Replacing devices Replacing the keyboard Replacing devices Installing the keyboard Replacing devices User Guide Replacing devices User Guide Be careful about where and how you work Troubleshooting computer problemsTaking care of your computer Be gentle with your computerCleaning the cover of your computer Computer stops responding Cleaning your computer displayNetworking problems Memory module problemsEthernet problems Spills on the keyboardProblems with the keyboard and other pointing devices Wireless LAN problemAn UltraNav pointing device problem SolutionComputer screen problems Keyboard problemsProblems with the display and multimedia devices Audio problems External monitor problemsPower problems Battery and power problemsBattery problems Sleep problems Power button problemUser Guide Before you contact Lenovo Getting help and serviceGetting support Telephone numbers Lenovo Support Web siteCalling Lenovo Finding ThinkPad options Purchasing additional servicesUser Guide Location of the UltraConnect wireless antennas Wireless related informationWireless interoperability Appendix A. Regulatory informationExport classification notice Locating wireless regulatory noticesElectronic emission notices Federal Communications Commission Declaration of ConformityAppendix A. Regulatory information User Guide Important Weee information Appendix B. Weee and recycling statementsUser Guide Appendix C. Energy Star model information Power plan Energy Saver settings when plugged into ac powerUser Guide Appendix D. Notices Trademarks Page Part Number Printed 1P P/N
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