Compaq Presario XL300 Operating manual

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PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES BATTERY OPERATIONS 1
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.

2 BATTERY OPERATIONS PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES
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
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CAUTION: To avoid loss of data, ensure that all data is saved before discharging a
battery pack.
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.
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CAUTION: Do not unplug the AC adapter during this process or you will need to
start the process over again with Step 1. You may use the Notebook while the
battery is draining.
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

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES BATTERY OPERATIONS 3
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.
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CAUTION: Never attempt to open or service a battery pack. Opening a battery
pack not only damages the pack and makes it unusable, but also exposes
potentially harmful battery components.

4 BATTERY OPERATIONS PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES
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.

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES BATTERY OPERATIONS 5
Presario 1200XL Series
Model XL300, XL300A, and XL300B
The following table shows the default settings for each Power Scheme.
Alarms
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.
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CAUTION: The settings on the Alarms tab is preset for the Notebook to run at its
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.
Power Schemes
Always on AC Power Battery Power
System Standby
Turn OFF Monitor
Turn OFF Hard Disks
Never
15 minutes
1 hour
5 minutes
2 minutes
3 minutes
Portable/Laptop AC Power Battery Power
System Standby
Turn OFF Monitor
Turn OFF Hard Disks
Never
3 hours
15 minutes
15 minutes
Never
10 minutes
Home/Office Desk AC Power Battery Power
System Standby
Turn OFF Monitor
Turn OFF Hard Disks
20 minutes
15 minutes
30 minutes
1 minute
2 minutes
10 minutes
Alarms
Alarm Default Alarm Action
Low Battery 10% Notification: Text Power
Mode: No Action
Critical Battery 0% Notification: No Action
Power Mode: Hibernation

6 BATTERY OPERATIONS PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES
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)
SpeedStep(TM) technology tab.
•Double-click the Flag icon on the Windows taskbar to open the Intel(R)
SpeedStep(TM) technology dialog box.

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES BATTERY OPERATIONS 7
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.
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CAUTION: The Notebook maintains system information and open files while in
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.

8 BATTERY OPERATIONS PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES
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.
Press any key. Flashing Power light
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.
Press Power button
once.
Power light is off,
screen is blank
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 Power button
once.
Power light is off,
screen is blank

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES BATTERY OPERATIONS 9
Presario 1200XL Series
Model XL300, XL300A, and XL300B
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.
Power Management Modes
Off Activation Deactivation Indicators
Standard Perform normal
Windows shutdown
using the Start
button on the
Windows taskbar.
Press Power
button once.
Power light is off,
screen is blank.
Manual Press and hold
down the Power
button for 4
seconds.