Compaq Presario 1200 Presario 1245 Series Maintenance and Service Guide - Page 85

Battery Pack Operating Time, Conditioning a Battery Pack, Disposing of a Used Battery Pack - power supply

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Maintenance & Service Guide Presario 1200 Series Model: 1245 | Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations Battery Pack Operating Time This appendix covers the following information concerning battery pack operating time: q Increasing battery pack operating time q Conditioning a battery pack q Disposing of a used battery pack Increasing Battery Pack Operating Time Battery pack operating time differs depending on several variables. To avoid unnecessary replacement, consider the following variables when determining how long a charged battery pack should last: q Power management settings q Hardware configuration q Software applications q Installed options q Display brightness q Hard drive usage q Changes in operating temperature q Type and number of installed PC Cards NOTE: The power consumption requirements the battery pack very rapidly. for PC Cards vary widely. Some cards drain 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: 1. Set the power conservation levels in the Power Management utility to Maximum. 2. Customize the timeout value to work more efficiently with the applications. The amount of battery life depends on the values selected. Maximizing the Energy Stored To maximize the energy stored in the battery pack, follow these guidelines: q Condition the battery pack at least every 30 days to improve overall battery performance. q Keep a battery pack in the computer when using it with AC power to supply the battery pack with a constant trickle charge. q Store the battery pack in a cool, dry place when not in use. Return to the top of this page. Conditioning a Battery Pack CAUTION: To avoid a 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 LED light on the display stops blinking. Your battery gauge may read 100 percent for a period of time before LED light on the display stops blinking. Do not unplug the AC adapter until the arrow disappears. 2. Unplug the AC adapter and allow the battery to drain until the computer reaches hibernation and turns itself off. Do not plug in the AC adapter during this process or you will need to restart with Step No. 1. You may use the computer while the battery is draining. 3. Your battery is re-conditioned. 4. Plug in the AC adapter and begin using the computer. The table below shows the approximate battery pack charge times. Computer NiMH Battery Pack Approximate Battery Charge Time On Line 4.0 hours Off Line 2:00 hrs Disposing of a Used Battery Pack In the interest of safeguarding our environment, Compaq Computer Corporation recommends that nickel metal hydride (NiMH) battery packs be recycled. Battery packs should be handled in accordance with country, state, province, or local regulations. 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. Return to the top of this page.

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Maintenance & Service Guide
Presario 1200 Series
Model: 1245
|
Home Page
|
Notice
|
Preface
|
Product Description
|
Troubleshooting
Illustrated Parts Catalog
|
Removal & Replacement Procedures
|
Specifications
Pin Assignments
|
Battery Pack Operations
Battery Pack Operating Time
This appendix covers the following information concerning 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 differs depending on several variables. 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
:
1. Set the power conservation levels in the Power Management utility to
Maximum
.
2. Customize the timeout value to work more efficiently with the applications. The amount of
battery life depends on the values selected.
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 computer 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.
Return to the
top of this page
.
Conditioning a Battery Pack
CAUTION:
To avoid a 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 LED light on the
display stops blinking. Your battery gauge may read 100 percent for a period of time
before LED light on the display stops blinking. Do not unplug the AC adapter until the
arrow disappears.
2. Unplug the AC adapter and allow the battery to drain until the computer reaches
hibernation and turns itself off.
Do not plug in the AC adapter during this process
or you will need to restart with Step No. 1.
You may use the computer while the
battery is draining.
3. Your battery is re-conditioned.
4. Plug in the AC adapter and begin using the computer.
The table below shows the approximate battery pack charge times.
Approximate Battery Charge Time
Computer
On Line
Off Line
NiMH Battery Pack
4.0 hours
2:00 hrs
Disposing of a Used Battery Pack
In the interest of safeguarding our environment, Compaq Computer Corporation recommends that
nickel metal hydride (NiMH) battery packs be recycled. Battery packs should be handled in
accordance with country, state, province, or local regulations.
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.
Return to the
top of this page
.