Juniper Systems Allegro DOS Manual - Manual (Page 48)

Page 2-30 Hardware Features
Auto Suspend
When the Auto Suspend feature is on, the Allegro turns itself off if there
is no activity after a specified period of time. The time ranges are from
five to 75 minutes in five minute increments. Auto Suspend monitors
both keystrokes and processor activity.
Power Manager
The BIOS Power Manager is a sophisticated mechanism which
automatically speeds up and slows down the system CPU based on the
level of activity. Activities monitored include keypresses, serial port
activity, changes to video memory, file system activity, and PC card
activity.
When there is a high degree of activity, the system runs at a faster rate.
When there is a lesser degree of activity, the system runs at a slower
rate, consuming less power. If the Power Manager is enabled, the CPU
Performance setting affects the range of speeds at which the CPU runs.
When the Power Manager is turned off, the CPU Performance setting
causes the CPU to run at a fixed clock speed.
In Windows CE, the Power Manager is built-in. In DOS, you can leave it
on (default) or turn it off. Because the Power Manager can greatly
extend the life of the batteries, we recommend that you run the Allegro
with the Power Manager on and the CPU speed set to medium.
You can gain even more power management efficiency within your
application program by following the recommended power
management techniques discussed in Section 7 and Section 8.
Changing the NiMH Battery Pack
The battery compartment is accessed through a door in the back of the
case. Before you remove an existing battery pack from the Allegro,
complete the following:
1) Exit from all open programs.
2) Turn the Allegro off.
3) Push up on the sliding latches on the sides of the Allegro to open the
battery compartment door.
4) Slide the battery pack towards the left side of the battery
compartment and pull it out.