Juniper Systems Allegro DOS Manual - Manual (Page 38)

Page 2-20 Hardware Features
By initially charging the batteries this way, you will become familiar
with the Allegro’s battery gauging feature and how the battery status
LEDs work. This recommendation is made even if you eventually plan
to use an external battery charger to charge the battery pack or if you
are going to use the optional alkaline battery holder.
Setting the Battery Charge
After installing the battery pack into the Allegro, the battery charge
percent must be set. This allows the Allegro to know the pack’s charge
status. When you insert the battery pack into the Allegro for the first
time, the charge status is unknown to the Allegro.
To set the charge status of the battery pack after you install the battery
pack for the first time, complete the following:
1) Turn on the Allegro by pushing the On/Off button.
As Windows CE loads, various screens appear that do not require any
action until it gets to the New Battery Detected screen.
2) Tap on the circle next to the Specify charge (%) option to set charge
status.
3) Set the charge percent to 10 by taping on the small up or down arrows
to move the percent.
The capacity of the NiMH battery we have provided with the Allegro
is dependant on what brand of NiMH battery pack you are using.