Compaq Armada 7400 Reference Manual page 54

When you need to leave your computer unattended but you don't
want to turn it off, conserve power by initiating Suspend. Always
put your computer in Suspend when a battery pack is your only
power source. With a fully charged battery pack, Suspend
conserves battery life.
Frequent discharge/recharge cycles shorten battery pack
life.
To turn off the computer:
1. Save open files.
2. Shut down the computer.
The Start Æ Shut Down command will close all applications and
automatically power off the system. This eliminates the need to
slide the power switch.
If you are working in DOS or if you experience a severe system
crash, you can use the power switch to turn off the computer.
If you plan to store the computer for two weeks or more,
remove the battery pack from the computer battery bay. This
reduces the battery discharge rate and extends battery pack
operating life.
The computer comes standard with a collection of power
management features that allow you to extend battery operating
time and conserve power.
Use power management to monitor most of the computer
components such as the hard drive, processor, and display. When
a component is inactive for a specified period of time, called a
timeout, you can use power management settings to shut it down
temporarily. Refer to the section, "Timeout," later in this chapter.