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Presario 1600XL Series
Model 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143, 1600-XL144,
1600-XL146, 1600-XL147, 1600-XL150 XL156, XL157, XL255, XL256, XL257, and XL258
Battery Operations
This section explains the following topics 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 varies depending on several factors. To avoid unnecessary
replacement, consider the following 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
amount of 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.
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RESARIO NOTEBEOOK MAINTENANCE AND SERVICE GUIDE
1600XL S
ERIES
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ATTERY OPERATIONS
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Presario 1600XL Series
Model 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143, 1600-XL144,
1600-XL146, 1600-XL147, 1600-XL150 XL156, XL157, XL255, XL256, XL257, and XL258
• 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 Notebook when using it with AC power. This supplies
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 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
disappears.
2. Unplug the AC adapter and allow the battery to drain until the computer reaches
hibernation and turns itself off.
CAUTION:
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restart with Step 1. You may use the computer while the battery is draining.
3. The battery is reconditioned.
4. Plug in the AC adapter and begin using the computer.
The table below shows battery pack charge times by model.
Computer Online Offline
Li-ION Battery Pack 4.5 hours premature termination 2:50 hr
To avoid loss of data, ensure that all data is saved before discharging a
Do not plug in the AC adapter during this process or you will need to
Battery Charge Time
2 B
ATTERY OPERATIONS
P
RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
1600XL S
ERIES
Presario 1600XL Series
Model 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143, 1600-XL144,
1600-XL146, 1600-XL147, 1600-XL150 XL156, XL157, XL255, XL256, XL257, and XL258
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:
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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 NOTEBEOOK MAINTENANCE AND SERVICE GUIDE
1600XL S
ERIES
B
ATTERY OPERATIONS
3
Presario 1600XL Series
Model 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143, 1600-XL144,
1600-XL146, 1600-XL147, 1600-XL150 XL156, XL157, XL255, XL256, XL257, and XL258
4 B
ATTERY OPERATIONS
P
RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
1600XL S
ERIES
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