HP 4320t Mobile manual Managing low battery levels, Identifying low battery levels

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The battery charges whether the computer is off or in use, but it charges faster when the computer is off.

Charging may take longer if a battery is new, has been unused for 2 weeks or more, or is much warmer or cooler than room temperature.

To prolong battery life and optimize the accuracy of battery charge displays, follow these recommendations:

●If you are charging a new battery, charge it fully before turning on the computer.

●Charge the battery until the battery light turns off.

NOTE: If the computer is on while the battery is charging, the Power Meter in the notification area may show 100 percent charge before the battery is fully charged.

●Allow the battery to discharge below 5 percent of a full charge through normal use before charging it.

●If the battery has been unused for one month or more, calibrate the battery instead of simply charging it.

The battery light displays charge status:

●Amber: The battery is charging.

●White: The battery is close to full charge capacity.

●Blinking amber: The battery is not charging and has reached a low or critical battery level.

●Off: If the computer is plugged into an external power source, the light turns off when the battery is fully charged. If the computer is not plugged into an external power source, the light stays off until the battery reaches a low battery level.

Managing low battery levels

The information in this section describes the alerts and system responses set at the factory. Some low-battery alerts and system responses can be changed in Power Options. Preferences set by using Power Options do not affect lights.

Identifying low battery levels

When a battery that is the sole power source for the computer reaches a low battery level, the battery light blinks.

If a low battery level is not resolved, the computer enters a critical battery level, and the battery light begins blinking rapidly. If the computer is on or in the Sleep state, the computer remains briefly in the Sleep state, and then shuts down and loses any unsaved information.

Resolving a low battery level

CAUTION: To reduce the risk of losing information when the computer reaches a critical battery level, do not restore power until the power lights turn off.

30 Chapter 6 Power

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Contents HP 4320t Mobile Thin Client Product notice Safety warning notice Iv Safety warning notice Table of contents Applications Multimedia Inserting a digital card Removing a digital card Hardware upgrades Page Identifying the hardware DisplayTop Pointing devicesLights Buttons, switches, and speakers Keys Fn keyFront Environmental NoticesRight side Left sideWireless antennas BottomIdentifying the labels Component Description HP Write Filters Using the File-Based Write Filter command line utilityFile-Based Write Filter Using the File-Based Write Filter configuration interface Using the File-Based Write Filter status utilityUsing the Enhanced Write Filter command line utility Enhanced Write FilterUsing the Enhanced Write Filter configuration interface AllUsing the Enhanced Write Filter status utility Configuration Local drivesDrive Z Drive CUser accounts Mapping network drivesRoaming profiles Creating a new user accountPage Applications Remote Desktop ConnectionHP Remote Graphics Software RGS TeemTalk Terminal EmulationMicrosoft Internet Explorer Windows Media Player HP ThinState CaptureHP ThinState Deploy Using the keyboard Using pointing devicesPointing devices and keyboard Switching the screen image Displaying system informationDecreasing screen brightness Increasing screen brightnessUsing the keypads Using the embedded numeric keypad Enabling and disabling the embedded numeric keypadUsing an optional external numeric keypad Switching key functions on the embedded numeric keypadPower Power control and light locationsSetting power options Using power-saving statesShutting down the computer Initiating and exiting SleepUsing battery power Using the Power MeterDisplaying the remaining battery charge Inserting or removing the batteryCharging a battery Identifying low battery levels Managing low battery levelsResolving a low battery level Storing a battery Conserving battery powerDisposing of a used battery Using external AC power Connecting the AC adapterPage Using the audio features Using multimedia hardwareMultimedia Using the video features Using the audio-in microphone jackUsing the audio-out headphone jack Adjusting the volumeUsing the Hdmi port Opening preinstalled multimedia software Using multimedia softwareUsing multimedia software Preventing playback disruptions Wireless About integrated wireless devicesUsing wireless controls Using WlanSetting up a Wlan Connecting to a WlanUsing wireless security features Identifying a Wlan deviceConnecting a modem cable Using a modemModem and LAN Connecting a country- or region-specific modem cable adapter Selecting a location setting Adding new locations when travelingSolving travel connection problems Viewing the current location selectionSet the modem to ignore dial tones Connecting to a local area network Security Using passwordsProtecting the computer Setting passwords in Windows Using administrator and user passwordsAutomatic logon Manual logonSetting passwords in Computer Setup Using a setup passwordAdministrator logon Managing a setup passwordInstalling a security cable Entering a setup passwordConnecting hardware Using a USB deviceConnecting a USB device Securing USB portsUsing the USB Storage Options utility Using Media Card Reader cards Inserting a digital cardRemoving a digital card Configuring an ExpressCard Using ExpressCardsInserting an ExpressCard Removing an ExpressCard Hardware upgrades Identifying installed drivesUsing optical drives select models only Handling drivesInserting an optical disc CD or DVD Removing an optical disc CD or DVDWhen the disc tray opens When the disc tray does not openUsing external drives Using optional external devicesUsing an optional external MultiBay or external MultiBay Inserting and replacing memory modulesPage Page Page Page Page Page About the boot order device MultiBootEnabling boot devices in Computer Setup Considering boot order changes Choosing MultiBoot preferencesDynamically choosing a boot device using the F9 prompt Setting a new boot order in Computer SetupSetting a MultiBoot Express prompt Entering MultiBoot Express preferences Computer Setup Starting Computer SetupUsing Computer Setup Navigating and selecting in Computer SetupRestoring factory settings in Computer Setup Computer Setup menusFile menu System Configuration menu Security menuComputer Setup menus Computer Setup Cleaning the display Cleaning the keyboardRoutine care Traveling and shippingPage Index USBHdmi Hdmi USB

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