Lenovo 628323U manual Charging the battery, Maximizing the battery life, Power-saving modes

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•You can charge the battery when the ac power adapter is connected to the computer and the battery is installed. You need to charge it in any of the following conditions:

–When you purchase a new battery

–When the battery meter at the bottom of your display shows that the battery charge is low

–When the battery has not been used for a long time

Charging the battery

When you find that the percentage of power remaining is low or when the power alarm alerts you that the remaining power is low, you need to charge your battery or replace it with a charged battery.

If an ac outlet is convenient, plug the ac power adapter into it, and then insert the jack into the computer. The battery will be fully charged in about 3 to 6 hours. This is affected by the battery size and the physical environment. The battery status indicator will let you know that the battery is charging, and will also notify you when the battery is fully charged.

Note: To increase the life of the battery, the computer does not start recharging the battery if the remaining power is greater than 95%.

Maximizing the battery life

To maximize the life of the battery, do the following:

•Use the battery until the charge is completely depleted; that is, use the battery until the battery status indicator starts blinking orange.

•Recharge the battery completely before using it. The battery is fully charged if the battery indicator shows green when the ac power adapter is plugged in.

•Always use power management features such as sleep mode.

Power-saving modes

There are several power-saving modes that you can use at any time to save power. This section introduces each mode and gives tips on the effective use of the battery power.

•Sleep

In sleep mode, your work is saved to the memory, and the computer display is turned off. When your computer wakes up, your work is restored within seconds. To put your computer into sleep mode, close the computer lid if you are logged in. To resume from sleep mode, open the lid.

Note: If you are not logged in, closing the computer lid will shut down the computer.

•Wireless off

Disable the wireless features, such as Bluetooth or wireless LAN, if you are not using them.

–To disable the wireless LAN, click the status area in the lower-right corner of the screen, and then go to Settings ➙ Internet connection ➙ Wi-Fi network. In the drop-down list box, select Disable Wi-Fi.

–To disable the bluetooth feature, click the status area in the lower-right corner of the screen, go to Settings ➙ Bluetooth, and then clear Enable bluetooth.

Handling the battery

This system supports only batteries specially designed for this specific system and manufactured by Lenovo or an authorized builder. The system does not support unauthorized batteries or batteries designed for other systems. If an unauthorized battery or a battery designed for another system is installed, the system will not charge.

16User Guide

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Contents User Guide Safety, Warranty, and Setup Guide Regulatory Notice Contents Appendix B. Weee and recycling Statements Prevent your computer from getting wet Read this firstProtect yourself from the heat that your computer generates Protect the cables from being damagedHandle your computer gently Important safety informationConditions that require immediate action Carry your computer carefullySafety guidelines Service and upgradesPower cords and power adapters Extension cords and related devicesPower supply statement Plugs and outletsExternal devices General battery notice Rechargeable battery noticeElectrical current safety information Heat and product ventilationUsing headphones or earphones Liquid crystal display LCD noticeAdditional safety information Xii User Guide Front view Locating computer controls, connectors, and indicatorsProduct overview CameraRight-side view System status indicatorPower button MicrophoneAc power connector USB 2.0 connectorPower status indicator Media card reader slotEthernet connector VGA connectorUSB 3.0 connectors Left-side viewStatus indicators System status indicatorsBottom view User Guide Locating important product information Wireless status indicatorPower status indicator Machine type and model labelFCC ID and IC Certification number label Features SpecificationsBattery life Power source ac power adapterBattery pack Operating environmentHow can I use the battery power more effectively? Using your computerFrequently asked questions Registering your computerSpecial keys How do I give presentations or attach an external monitor?How do I attach or replace a device? Using the UltraNav pointing device Using the TrackPoint pointing deviceUsing the touch pad Changing the capCustomizing the touch pad Using the ac power adapter Power managementChecking the battery status Connecting the ac power adapterPower-saving modes Charging the batteryMaximizing the battery life Handling the batteryUsing your computer Go to Settings Internet connection Wi-Fi network Connecting to a wireless LANEstablishing wireless LAN connections Wireless LAN connection statusConnecting an external monitor Connecting a projector or an external monitorTips for using the wireless LAN feature Attaching an external monitorUsing audio features Using the cameraUsing a flash media card Inserting a flash media card Removing a flash media cardUser Guide Accessibility and comfort You and your computerErgonomic information Accessibility information ComfortTravel tips Travel accessoriesTraveling with your computer Assistive technologiesUser Guide Replacing the battery Replacing devicesStatic electricity prevention 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 Taking care of your computer Troubleshooting computer problemsBe careful about where and how you work Be gentle with your computerCleaning the cover of your computer Cleaning your computer display Computer stops respondingEthernet problems Memory module problemsNetworking problems Spills on the keyboardAn UltraNav pointing device problem Wireless LAN problemProblems with the keyboard and other pointing devices SolutionKeyboard problems Problems with the display and multimedia devicesComputer screen problems External monitor problems Audio problemsBattery and power problems Battery problemsPower problems Power button problem Sleep problemsUser Guide Getting help and service Getting supportBefore you contact Lenovo Lenovo Support Web site Calling LenovoTelephone numbers Purchasing additional services Finding ThinkPad optionsUser Guide Wireless interoperability Wireless related informationLocation of the UltraConnect wireless antennas Appendix A. Regulatory informationElectronic emission notices Locating wireless regulatory noticesExport classification notice Federal Communications Commission Declaration of ConformityAppendix A. Regulatory information User Guide Appendix B. Weee and recycling statements Important Weee informationUser Guide Power plan Energy Saver settings when plugged into ac power Appendix C. Energy Star model informationUser Guide Appendix D. Notices Trademarks Page Part Number Printed 1P P/N
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