Maintenance & Service Guide
Presario 1900 Series
Models: 1905, 1906, 1910,
1915, 1919, 1920, 1922, and 1925
| Home Page | Notice
| Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery
Pack Operations
Battery Pack Operating Time
This section covers the following information concerning 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:
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.
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.
|
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:
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.
Unplug the AC adapter and allow the battery to
drain until the computer reaches hibernation and turns itself off.
|
CAUTION: Do
not plug the AC adapter during this process or you will need to restart with step number
1. You may use the computer while the battery is draining. |
Your battery is re-conditioned.
Plug in the AC adapter and begin using the
computer.
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 hr |
In the interest 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: Never
attempt to open or service a battery pack. Opening a battery pack not only damages the
pack and makes it unusable, but also expose potentially harmful battery components. |
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