Samsung N640GR4002/SEF, N640CP4007/SEF, N640CP4024/EHQ Using the Battery, Charging the Battery

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Using the Battery

Your computer uses a smart rechargeable battery pack for power when the AC adapter is not attached to an electrical outlet. The smart battery gives a accurate measurement of the current battery capacity which helps extend operating time by enabling effective power management in operating systems that take advantage of the accurate information supplied by the battery.

Charging the Battery

Your computer’s battery starts charging automatically when you connect the power to the computer and to an electrical outlet. If the computer is off, the battery charges faster than if the computer’s power is on.

Approximate charging times for Li-Ion (Ni-MH) battery are

•3 (2) hours with the computer off.

•5 (4) hours with the computer on.

While the battery is charging normally, the battery charge light on the computer is amber (See ”System Status Lights” on page 18 for the location of the battery charge light). When the battery is fully charged, the light changes to green.

When you use a new battery pack for the first time or use a battery after a long period of storage, the initial battery life is shorter than normal. Normal battery life resumes after a few discharge-recharge cycles.

Follow these rules for charging your battery:

•A battery normally discharges power when not used for long periods of time. Be sure to recharge the battery every two months when it is not in use.

•Make it a practice to discharge your battery fully before recharging the battery. This can help extend the life of the battery.

•Do not attempt to charge the battery in temperatures of under 41o F (5o C) or over 95o F (35oC.)

All batteries eventually wear out and lose the ability to hold a charge. You may need to replace your battery pack after a year of average usage.

32 Using the Battery

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Contents Using Your Documentation Special Features of the User’s ManualUsing the Software User Documentation Introducing Your Computer LCDBack View of Computer Using Your Computer for the First Time Attaching the AC AdapterTurning On the Computer’s Power Turning On the ComputerAdjusting the LCD Display APMAdvanced Power Management modeUnderstanding Post Turning Off Your ComputerACPIAdvanced Configuration and Power Interface mode Restarting Your ComputerTips for Using Your Computer Traveling with Your Computer Handling Spills Storing the Computer for Long PeriodsUsing the Keyboard KeyboardUsing the Embeded Numeric Keypad Numeric KeypadFn Key Function Combination Using Special Function KeysDescription of Special Function Keys Using the Keyboard Mouse Action How To Using the TouchpadUsing the Touchpad Using the Touchpad Reading the System Status Lights System Status LightsReading the System Status Lights Connecting Peripheral Devices Peripheral ConnectorsConnecting Peripheral Devices IconConnectorConnecting Peripheral Devices Using the Flex-Bay Setting the IDE typeDrive Switch To remove a device from the Flex-BayTo install a device in the Flex-Bay Removing a Device from the Flex-BayUsing the Floppy Drive Magnetic fields can destroy the information on a diskUsing the Floppy Drive Using the CD-ROM Drive Using the CD-ROM DriveUsing the CD-ROM Drive Using the DVD-ROM Drive Installing the Power DVD Player MPEG-2 SoftwareUsing the Hard Drive Removing the Hard DriveInstalling a Hard Drive Removing the Hard DriveUsing the Battery Charging the BatterySafely Using the Battery Removing the BatteryInstalling the Battery Removing the Battery PackMonitoring the Battery Charge Using the Battery GaugeUsing PowerProfiler to Monitor the Battery Set options under Battery Status and Alarm SettingsCondition Action to Take Battery WarningsBattery Warnings Using the Modem Sens Modem Naming ConventionIf you use a Windows Communication Program Precautions before useIf you use a simple terminal program Specification Description of 56KInstalling the Modem Driver in Windows Me Install the Modem DriverDeleting the Modem Driver Confirming Installation of the Modem DriverSelecting a Country Installing the Modem Driver in Windows 95/98 Check if Country is selected correctly Modem Commands What are AT commands?Before Using AT Commands Command modeDisplay the result value Using AT commandsUsing Command Mode during Communications Basic AT Commands ATOATS0? Using System Setup Starting System SetupSystem Setup Menus Menu FunctionSystem Setup Navigation Keys Navigation Alternate Function KeyMain Menu Using System Setup Using System Setup Advanced Menu Security Menu Power Menu Using System Setup Boot Menu Exit MenuUsing System Setup Creating a Password Using System SecuritySystem Passwords Deleting a Password Locking the Keyboard Requiring a Boot PasswordLocking the Hard Drive Boot Sector Using Power Management Options Maximum Power Saving ModeStandby Mode Rest ModeRest Mode Precautions Using PowerProfiler Creating a Save to Disk Partition To create FdiskTo create Phdisk To reinstall your operating system Insert the System Recovery CD-ROMTo reinstall your original applications and drivers Video Features and Configuration Resolution and Color DepthVideo Driver Capabilities Configuring Display FeaturesSelecting a Monitor Type Changing Color Depth and Resolution Using the TV-Out Port Changing the Video DriverClick OK and follow the prompts that appear on the screen Using Dual View mode Setting Dual View modeLimits and cautions of using Dual View mode Using several display devices Primary Limits SecondaryTwo Displays Three DisplaysLimits on Video Driver while using Dual View mode Working with PC Cards Maintaining PC CardsUsing PC Cards Windows 98/ MeWindows NT Working with PC Cards AC Adapter Using OptionsBattery Pack Auto Adapter Memory ModulesBefore You Install Memory Installing a Memory ModuleRemoving the Memory Module Compartment Door Installing a Memory Module Hard DrivesSetting the switch on 2nd HDD CD-ROM DriveSuperdisk LS-120 Drive DVD-ROM Drive ModuleZIP Drive Docking Options Inserting a 120MB LS-120 diskette into the LS-120 driveAbout Drivers and System Resources DriversIRQs IRQsService Pack 4 for Windows NT About Drivers and System Resources Troubleshooting Operating ProblemComputer does nothing when you turn it on Computer is not behaving as expectedBattery power seems to run out faster than expected PC Card does not work correctlyWhen using a PBX phone system I cant dial on my modem Infrared ProblemsModem Problems Troubleshooting Specifications Hardware SpecificationsDimension EnvironmentExternal AC Adapter Lithium-Ion Smart BatteryNi-MH Dumb Battery Abbreviations CD-ROMPcmcia Universal serial bus VoltVoltage alternating current Voltage collector currentBoot Boot diskGlossary AC adapterDMA direct memory access Cache memoryCardBus Cmos memoryFloppy disk Hard driveAddress IRQ interrupt request lineRAM random access memory MBmegabyteMegabit Operating systemResolution Refresh rateROM read-only memory SectorRecording the Computer Hardware Configuration Diskette aParallel port Enabled Mode Output only Disabled 42F8, IRQ 2E8, IRQ 3 DisabledDisabled Bi-directional Disabled OtherSecurity Menu Page Important Safety Instruction Iii Federal Communications Commission FCC Federal Communications Commission FCC Part 68 Statement CTR21 Statement Canadian Radio Interference RegulationsClass 1 Laser Productlaserschutzklasse 1 Produkt Power Cord Requirement Country-Specific Power cord Set RequirementsGeneral Requirements Country Accredited Applicable AgencySEV

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