Juniper Systems Allegro DOS Manual - Manual (Page 49)

Hardware Features Page 2-31
5) Place the new battery pack in the left side of the battery compartment,
push down, and slide it all the way to the right.
6) Push the battery door closed until each release latch clicks into place.
7) Slide the release latches downward, until they cannot slide any
further, to securely latch the battery door closed.
Alkaline Battery Holder: Inserting Batteries and Usage Information
The alkaline battery holder enables alkaline batteries to power the
Allegro Field PC. For proper usage, complete the following steps:
1) Exit from any open programs and turn the Allegro off before
changing the batteries.
2) Push up on the release latches on the sides of the Allegro to open the
battery compartment door.
3) Remove the NiMH pack or alkaline holder by sliding it to the left and
pulling it out.
4) Open the door to the alkaline battery holder by pressing in on both
tabs with your index finger and thumb as shown below.
5) Insert three fresh AA alkaline batteries, taking care to orient them
correctly (only use alkaline batteries). Always replace all three
batteries at once. (Note: For best results, we recommend that you use
the new types of alkaline batteries such as the Duracell Ultra
™ and
Energizer Titanium ™ .)