HP 1200, XL300, XL300A, XL300B Maintenance and Service Guide ch5battery

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Presario 1200XL Series

Model XL300, XL300A, and XL300B

Battery Operations

This section covers the following topics regarding battery pack operating time:

• Increasing Battery Pack Operating Time

• Conditioning a Battery Pack

• Disposing of a Used Battery Pack

Increasing Battery Pack Operating Time

Battery pack operating time varies depending on several factors. To avoid unnecessary replacement, consider the following variables when determining how long a charged battery pack should last:

• Power management settings

• Hardware configuration

• Software applications

• Installed options

• Display brightness

• Hard drive usage

• Changes in operating temperature

• Type and number of installed PC cards

Note: The power consumption requirements for PC cards vary widely. Some cards drain the battery pack very rapidly.

Battery pack operating time can be increased by as much as 50 percent by controlling the energy required by the computer and the energy stored in the battery pack.

Minimizing the Energy Required

To minimize the energy required by the computer, follow these steps:

• Set the power conservation levels in the Power Management utility to Maximum.

• Customize the timeout value to work more efficiently with the applications. The

amount of battery life depends on the values selected.

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Presario 1200XL Series

Model XL300, XL300A, and XL300B

Maximizing the Energy Stored

To maximize the energy stored in the battery pack, follow these guidelines:

• Condition the battery pack at least every 30 days to improve overall battery

performance.

• Keep a battery pack in the Notebook when using it with AC power to supply the

battery pack with a constant trickle charge.

• Store the battery pack in a cool, dry place when not in use.

Conditioning a Battery Pack

CAUTION:

battery pack.

To avoid loss of data, ensure that all data is saved before discharging a

To condition a battery pack, complete the following steps:

1. Plug in the AC adapter and allow the battery to charge until the fast charge arrow on the display disappears. Your battery gauge may read 100 percent for a period of time before the arrow disappears. Do not unplug the AC adapter until the arrow is gone.

2. Unplug the AC adapter and allow the battery to drain until the Notebook reaches hibernation and turns itself off.

CAUTION:

start the process over again with Step 1. You may use the Notebook while the battery is draining.

Do not unplug the AC adapter during this process or you will need to

3. The battery is re-conditioned.

4. Plug in the AC adapter and begin using the Notebook.

The table below shows battery pack charge times by model.

Battery Charge Time

Computer On Line Off Line

Li—Ion Battery Pack 4.5 hours premature termination 2:50 hours

NiMH Battery Pack TBD TBD

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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE

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Presario 1200XL Series

Model XL300, XL300A, and XL300B

Disposing of a Used Battery Pack

In the interests of safeguarding our environment, Compaq Computer Corporation recommends that nickel metal hydride (NiMH) and lithium ion (Li-Ion) battery packs be recycled. Battery packs should be handled in accordance with country, state, province, or local regulations.

CAUTION:

pack not only damages the pack and makes it unusable, but also exposes potentially harmful battery components.

Never attempt to open or service a battery pack. Opening a battery

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Presario 1200XL Series

Model XL300, XL300A, and XL300B

Power Management

The following power management features are available for conserving AC power and extending battery operating time:

• Power Management Settings

• Low-Power Modes

• Battery Operating Life

• Servicing the Notebook - Full Off Mode

• Rebooting After a Lockup

• Recovering From a Loss of Electrical Power

Power Management Settings

Differing patterns of Notebook use determine the level of power management needed. These power management levels can be initiated based on the amount of time passed since the last system activity. System activity examples include keyboard strokes or mouse movement, DVD/CD playback (while under program control that monitors Standby), and modem use.

Power Schemes

You may select different settings or Power Schemes through Power Management from the Control Panel. The default Power Schemes are Home/Office Desk, Portable/ Laptop, and Always On. The settings can be customized by changing the following options:

• System Standby: length of inactivity before the Notebook goes into Standby mode

• Turn Off Monitor: length of inactivity before the screen times out and goes blank

• Turn Off Hard Disks: length of inactivity before the hard drive goes into low power

mode

Important: The setting for the Hard Disk must be less than or equal to the setting for the system. If the Notebook is on a network, Compaq recommends that System Standby be set to Never.

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Presario 1200XL Series

Model XL300, XL300A, and XL300B

The following table shows the default settings for each Power Scheme.

Power Schemes

Always on AC Power Battery Power

System Standby

Turn OFF Monitor

Turn OFF Hard Disks

Portable/Laptop AC Power Battery Power

System Standby

Turn OFF Monitor Turn OFF Hard Disks

Home/Office Desk AC Power Battery Power

System Standby

Turn OFF Monitor Turn OFF Hard Disks

Alarms

Never

15 minutes

1 hour

Never

3 hours

15 minutes

20 minutes 15 minutes 30 minutes

5 minutes 2 minutes 3 minutes

15 minutes

Never

10 minutes

1 minute

2 minutes

10 minutes

The Notebook can be set to Alarm when the battery power level is reduced or when it reaches a critical low level. The Notebook can also be set automatically to enter a low-power mode when the battery reaches a specific power level.

CAUTION:

best. Changing any of these settings could cause the Notebook to function improperly. It is recommended that these settings be left at their default values.

Alarm Default Alarm Action

Low Battery 10% Notification: Text Power

Critical Battery 0% Notification: No Action

The settings on the Alarms tab is preset for the Notebook to run at its

Alarms

Mode: No Action

Power Mode: Hibernation

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Presario 1200XL Series

Model XL300, XL300A, and XL300B

SpeedStep Technology Modes

SpeedStep Technology features several speed options for processor response to low-power conditions. These include the following settings:

• Maximum Performance: always at high speed

• Battery Optimized: always at low speed

• Reversed: opposite recommended

• Recommended: performance on AC, Battery Optimized on Battery

• Disabled: no run time support, high speed

SpeedStep options can be accessed in three ways:

• Access F10 Setup during startup and select the Advanced screen.

• Click Start>Settings>Control Panel>Power Options>Intel(R)

(TM)

SpeedStep

technology tab.

• Double-click the Flag icon on the Windows taskbar to open the Intel(R)

(TM)

SpeedStep

technology dialog box.

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Presario 1200XL Series

Model XL300, XL300A, and XL300B

Low-Power Modes

Compaq Presario 1200 Series Notebook Computers have two levels of low-power management: Hibernation and Standby.

Hibernation

Hibernation helps conserve battery life and protect data. Your Notebook automatically enters Hibernation mode when the battery has little power left or when the Notebook (operating on battery power) is in Standby mode for more than one hour. As the Notebook enters Hibernation, it automatically stores the contents of the Notebook memory to the hard drive before it shuts down. When the Notebook comes out of Hibernation, it returns to its former state.

Activate Hibernation mode by pressing the Power button once.

To restart the Notebook, press the Power button once. When the Notebook enters or wakes from Hibernation mode, a Progress window is displayed on the screen.

Standby

Standby mode is a low-power mode, also referred to as Sleep mode. Selecting Standby mode instead of turning off the Notebook when finished has two advantages: 1. It allows the Notebook to wake up faster than turning it completely off; 2. It saves more power than the active (On) mode.

Activate Sleep mode by pressing Fn+F4. Or click Start, select the Shut Down option, and click Standby.

CAUTION:

Standby mode. However, unsaved information is lost if the Notebook is turned off prior to system wake-up, or if a power loss occurs while using the AC adapter.

The Notebook maintains system information and open files while in

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Presario 1200XL Series

Model XL300, XL300A, and XL300B

The following table shows the conditions and indicators for entering and exiting the various power management modes, Standby, Hibernation, and Off.

Power Management Modes

Standby Activation Deactivation Indicators

Manual Press Fn+F4 key

combination or click the Start button on the Windows taskbar, then point to

Shutdown and click Standby.

Time-Out Default 15 minutes if using

battery power. Notebook will not automatically enter Standby mode if using AC Power.

Hibernate Activation Deactivation Indicators

Manual Press Power button

once.

Time-Out Default When battery is low

or after 1 hour of Standby. Notebook will not automatically enter Hibernation mode if using AC Power.

Press any key. Flashing Power light

Press Power button once.

Power light is off, screen is blank

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Presario 1200XL Series

Model XL300, XL300A, and XL300B

Power Management Modes

Off Activation Deactivation Indicators

Standard Perform normal

Windows shutdown

Press Power button once.

Power light is off,

screen is blank. using the Start button on the Windows taskbar.

Manual Press and hold

down the Power button for 4 seconds.

Important: The manual shutdown mode is not recommended unless the standard shutdown mode does not work.

Battery Operating Life

Battery operating life is affected by variables such as:

• Power conservation settings

• Hardware configuration

• Software applications Installed options

• Display brightness

• Hard drive usage

• Changes in operating temperature

• Type and number of installed PC Cards

For more information on increasing battery-pack operating time, conditioning the battery pack, and disposing of a used battery pack, refer to the Battery Pack Operations

section in

this Maintenance and Service Guide.

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Presario 1200XL Series

Model XL300, XL300A, and XL300B

Servicing the Notebook - Full Off Mode

The Notebook must be turned off completely when installing or replacing components in

The Notebook must be turned off completely when installing or replacing components in the system. Follow the instructions for putting the Notebook into Off mode properly,

the system. Follow the instructions for putting the Notebook into Off mode properly, unplugging it from the outlet, and removing the battery (see Battery Pack Removal

unplugging it from the outlet, and removing the battery (see Battery Pack Removal Sequence).

Sequence).

Rebooting After a Lockup

To reboot the Notebook (from a cold start) when the keyboard is frozen or the screen is

To reboot the Notebook (from a cold start) when the keyboard is frozen or the screen is locked, press and hold down the Power button for at least four seconds; this causes a

locked, press and hold down the Power button for at least four seconds; this causes a manual shutdown. Then, restart your Notebook with a single press of the Power button.

manual shutdown. Then, restart your Notebook with a single press of the Power button.

If the Notebook still does not recover, press the Power button and hold for four seconds to

If the Notebook still does not recover, press the Power button and hold for four seconds to shut it down, then remove the battery or unplug the AC power for at least 30 seconds.

shut it down, then remove the battery or unplug the AC power for at least 30 seconds. Reinsert the battery or reconnect AC power and press the Power button once to reboot.

Reinsert the battery or reconnect AC power and press the Power button once to reboot.

Recovering From a Loss of Electrical Power

Loss of electrical power causes the Notebook to turn off automatically. This may cause loss

Loss of electrical power causes the Notebook to turn off automatically. This may cause loss of data because the Microsoft Windows operating system is not able to close all files and

of data because the Microsoft Windows operating system is not able to close all files and programs properly.

programs properly.

Loss of power may be caused by one of the following:

• Electrical power service is interrupted.

• The power cord is accidentally disconnected.

If power surges or sags, the display and status lights may flicker, and the Notebook may

If power surges or sags, the display and status lights may flicker, and the Notebook may automatically restart. If an improper shutdown occurs, ScanDisk, a Microsoft Windows

automatically restart. If an improper shutdown occurs, ScanDisk, a Microsoft Windows utility program, runs automatically once power is restored. ScanDisk determines if the

utility program, runs automatically once power is restored. ScanDisk determines if the improper shutdown caused any errors on the hard disk. These errors may occur if the

improper shutdown caused any errors on the hard disk. These errors may occur if the Microsoft Windows operating system is not able to close all files properly before the

Microsoft Windows operating system is not able to close all files properly before the shutdown. If no errors are found, the restart process continues. If ScanDisk does detect

shutdown. If no errors are found, the restart process continues. If ScanDisk does detect errors, follow the instructions on the screen to continue the restart process. Work that was

errors, follow the instructions on the screen to continue the restart process. Work that was not saved before the loss of power or shutdown may be lost.

not saved before the loss of power or shutdown may be lost.

If a power failure occurs, or the power cord disconnects while the Notebook is turned on,

If a power failure occurs, or the power cord disconnects while the Notebook is turned on, turn it off until normal service is restored. The next time the Notebook is turned on,

turn it off until normal service is restored. The next time the Notebook is turned on, ScanDisk may run to check the hard disk for errors caused by improper shutdown.

ScanDisk may run to check the hard disk for errors caused by improper shutdown.

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