Juniper Systems Allegro DOS Manual - Manual (Page 39)

Allegro DOS Owner’s Manual 39
If the charging indicator LED does not light up when you plug the
Allegro into a charger, the battery has a 90% or higher charge and
does not need to be charged. Batteries should be discharged below
80% before they are recharged for maximum battery life.
Power Management Features
To conserve power, the Allegro has the following built-in power
management features: Auto Suspend and Power Manager. These
features are controlled through the System Setup Program|Power
Management screen.
Auto Suspend
When the Auto Suspend feature is on, the Allegro turns itself off if
there is no activity after a specifi ed period of time. The time ranges
are from 5 to 75 minutes in 5 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 key presses, serial
port activity, changes to video memory, fi le 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 fi xed clock
speed.
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.
Alkaline Battery Holder: Inserting Batteries and Usage
Information
The alkaline battery holder enables you to power the Allegro Field
PC with alkaline batteries. Always install the alkaline batteries into
the holder fi rst before you remove the battery pack in the Allegro.
The Allegro only has fi ve minutes of battery life to change battery, if
it takes longer than fi ve minuted the data saved in RAM can be lost.
Follow the steps outlined below for proper usage.
Exit from any open programs and turn the Allegro off before
changing the batteries. 1)