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.
P
RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
1200XL S
ERIES
B
ATTERY OPERATIONS
1
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:
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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:
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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
2 B
ATTERY OPERATIONS
P
RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
1200XL S
ERIES
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:
Ä
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
P
RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
1200XL S
ERIES
B
ATTERY OPERATIONS
3
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