Maximizing The Energy Stored; Conditioning A Battery Pack; Disposing Of A Used Battery Pack - Compaq Presario 1900 XL1 Maintenance & Service Manual

Battery Pack Operations
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.

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 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: 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.
3. Your battery is re-conditioned.
4. Plug in the AC adapter and begin using the computer.
The table below shows battery pack charge times by model.
Computer
Li ion Battery Pack

Disposing of a Used Battery Pack

file:///C|/download/www.compaq.com/athome/support/msgs/1900XL/6battery.html (2 of 3)6/27/2004 11:45:55 AM
Battery Charge Time
On Line
4.5 hours premature termination
Off Line
2:50 hr