InnoLabs I1000-PII Personal Computing Tablet User Manual ch3

InnoLabs Corporation Personal Computing Tablet ch3

Ch3

Battery and Power ManagementThis chapter gives information on using battery power. It alsodescribes how the Power Management features works to save power.
3-2 Battery and Power Management3Battery PackThe rechargeable battery pack supplies power to your Qbe whenexternal power is not connected.The average operating time of a battery pack is 2.5 hours for a Li-Ionbattery pack. The operating time can be prolonged if PowerManagement is activated. However, actual operating time can vary,depending on several factors; these could be the Power Managementsettings, the software in use, the brightness of the display, and the systemconfiguration.If you wish to extend the operating time when using battery power, youcan use an additional battery pack. (See the "Additional Battery Pack”section later in this chapter.)Initializing the Battery PackTo assure optimal performance, initialize a battery pack before you use itfor the first time. Initialization means discharging and fully rechargingtwice. This procedure could take a few hours.1. Make sure the AC adapter is not connected and the battery pack isinstalled.2. Turn on the Qbe.3. Select the "Run SCU Setup” item using the arrow key and thenpress [Enter] to run SCU.4. Leave the power on.5. Wait until the battery is fully discharged and the power is off.6. Connect the AC adapter to fully charge the battery pack.7. Repeat steps 2 to 7.
Battery and Power Management 3-33You cannot initialize two battery packs at the same time.Recharging the Battery PackTo recharge the battery pack, connect the AC adapter to the computerand an electrical outlet.To ensure the battery pack is charged to its full capacity, it is advisable tokeep the computer turned off during the recharging process. The batteryis fully recharged when all four bars of the battery indicator glow and theframe stop flashing.It takes, on average, 90 minutes to charge the battery pack to 80% of itscapacity. Two or three more hours are needed to charge it fully.1. Recharging will not start if the battery temperature is below 0°C (32°F)or above 45°C (113°F).2. The recharging process will stop if the battery temperature rises above60°C (140°F). It will continue when the temperature drops.3. During recharging, do not disconnect the AC adapter before the batteryhas been fully charged. This could result in a prematurely chargedbattery.4. After the battery has been fully recharged, do not immediately disconnectand reconnect the AC adapter to charge it again. Doing so may damagethe battery.
3-4 Battery and Power Management3Checking the Battery LevelThe battery level cannot be measured physically. Any reading on a batterymeter or gauge is only an estimation. This, however, could be less thanaccurate due to factors such as temperature and a long period of storage. Ifthe difference between the displayed battery level and the actual operatingtime is too large, initialize the battery pack as described earlier in thischapter to correct the problem.By Operating SystemSome operating systems, such as Windows, display a battery meter thatindicates the battery level.By Gas GaugeA “gas gauge” on the battery pack itself also indicates estimated batterycharge. If the battery pack is not installed and you want to check thelevel of the battery, you can do so by noting the number of lighted greensegments. These indicate the relative percentage of the battery charge.The battery pack is fully discharged when a lighted green segment nolonger appears.
Battery and Power Management 3-53Additional Battery PackThere is danger of explosion if the battery is incorrectly replaced. Replace thebattery only with the same or equivalent type recommended by the equipmentmanufacturer. Discard used batteries according to the manufacturerinstructions.If you wish to prolong operating time on battery power while traveling, anoptional extra fully charged battery pack is necessary.This additional battery pack can either be installed in the computer as thesecondary battery pack or used to replace the primary discharged batterypack.Installing the Secondary Battery Pack1. As a special bracket is required to install the secondary battery pack, youare advised to purchase the optional battery pack from an authorizeddealer.2. When the secondary battery pack is installed, recharging anddischarging always begins with the primary battery pack.The additional battery pack can be installed in the floppy disk drive bayas the secondary battery pack. For installation instructions, see the"Replacing the Floppy Disk Drive” section in Chapter 4.Replacing the Primary Battery Pack1. Make sure the computer is not turned on or connected to AC power.2. Carefully turn the computer upside down.3. Slide the locking latch toward the unlocked position and remove thecompartment cover.
3-6 Battery and Power Management34. Pull the battery pack out of the compartment.(diagram)Figure 3-1. Removing the Primary Battery Pack5. Slide the new battery pack into the compartment.6. Replace the compartment cover. Make sure the locking latch is inthe locked position.
Battery and Power Management 3-73Low BatteryWhen a single bar begins to flash in the battery indicator, battery powerhas reached the "Low” level and only ten minutes of computer operationremains.At this stage, make sure to save your data then connect the AC adapteror turn off the computer.Battery operating time depends on functions performed. If, for example,the audio subsystem, PC card, or disk drives are in use, then the batteryexpends itself sooner.If no appropriate action is taken within about three minutes of the batteryreaching "Low” level, the computer automatically suspends to disk andturns off.1. If the suspend-to-disk partition does not exist on your hard disk, thecomputer will not be able to suspend to disk.2. If you fail to save data when the battery power runs out, then you lose it.
3-8 Battery and Power Management3Power ManagementYour Qbe’s Power Management feature saves power by automaticallyreverting to low power mode when the system is inactive for some time.The computer returns to full power mode whenever activity is detectedsuch as when a key is pressed.This section describes how Power Management works. To customizePower Management, you need to run the SCU program. (See the"Power Management Menu” section in Chapter ? for instructions.)Local Power ManagementLocal Power Management is "Device-level” power saving. When asingle device is inactive for some time, it automatically shuts down or isslowed down to reduce power consumption. The device reactivateswhen next accessed.For your computer, the single devices under its control are:• LCD displayThe screen blanks out after a period of inactivity.• Hard disk driveThe hard disk drive pins down” after a period of inactivity.Global Power ManagementGlobal Power Management is system-level power saving. When thesystem is inactive for some time, it automatically enters low power modeto reduce power consumption. The PCT resumes operation when asystem activity is detected. You can press any key to resume operation.
Battery and Power Management 3-93Low power mode work in the following way:In Global Standby mode, the CPU clock stops andseveral system devices enter lower power mode.In Power-On-Suspend mode, more systemdevices enter lower power mode. Thepower/suspend indicator ( ) lights amber inPower-On-Suspend mode. To end Power-On-Suspend mode, you need to press a key.When Suspend-to-Disk takes effect, the systemsaves the current status to a "Suspend-to-diskpartition” on the hard disk. The computer thenturns off automatically. When you next turn on thecomputer, it retrieves the status from the suspend-to-disk partition, so that your computer is returned toexactly where you were at the time of suspension.Suspend-to-Disk is convenient in the sense that youdo not have to close all the software applicationsbefore turning off, and, when you next turn on thecomputer, the software applications are ready foruse in a matter of seconds.1. Whenever the computer is turned on, it checks the suspend-to-diskpartition. If the partition does not exist and there is enough hard diskspace left, the computer automatically creates the partition.2. If there is no suspend-to-disk partition, you can not use the Suspend-to-Disk function.3. You can verify the suspend-to-disk partition using the SCU program. (Seethe "Utility Menu” section in Chapter 5.)Full Power ModeGlobal Standby ModePower-On-SuspendModeSuspend-to-Disk Mode2 to 14 minute5 to 60 minutes1 to 16 minutes
3-10 Battery and Power Management3Manually Entering Low Power ModeIn addition to the timer setup in the SCU program that causes thecomputer to enter lower power mode automatically, you can manuallyinitiate lower power mode at any time in one of the following ways:• By pressing [Fn]+[F1]This will activate Power-On-Suspend mode. If the computerremains in Power-On-Suspend mode until Suspend-to-Disk modetimer times out, the computer enters Suspend-to-Disk mode.• By closing the top coverIf an external monitor is not connected, closing the top cover causesthe computer to enter Power-On-Suspend mode. When you nextopen the LCD display, the computer operation resumes. If the topcover remains closed until the Suspend-to-Disk mode timer times out,the computer enters Suspend-to-Disk mode.• By pressing the power buttonWhen you press the power button, the computer enters Power-On-Suspend or Suspend-to-Disk mode depending on the "Power ButtonFunction” setting in the SCU program. (Default setting is PowerOnSuspend.) If the computer remains in Power-On-Suspend modeuntil the Suspend-to-Disk mode timer times out, the computer entersSuspend-to-Disk mode.It a good habit to save your data before you manually initiate low powermode.

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