Compaq Prosignia 150 Series Maintenance And Service Manual page 5

Index Page
Product Description
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
The power consumption requirements for PC Cards vary widely. Some cards drain the battery pack very
NOTE:
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.
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.
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
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
Li ion Battery
Pack
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.
Revised: September 16, 1999
MAINTENANCE & SERVICE GUIDE
for Prosignia 150 Series Computer
Preface
Illustrated Parts Catalog
Increasing Battery Pack Operating Time
Minimizing the Energy Required
Maximizing the Energy Stored
Conditioning a Battery Pack
Approximate Battery Charge Time
On Line
4.0 hours premature
termination
4.5 hours premature
termination
Disposal of a Used Battery Pack
-or- Notice Specifications
Troubleshooting
:
Off Line
2:00 hrs
2:50 hrs
Battery Pack
Removal & Replacement