Juniper Systems Allegro DOS Manual - Manual (Page 36)

Page 2-18 Hardware Features
Batteries
The power consumption of the Allegro is very efficient. The Auto
Suspend and Power Management features help to conserve power on
the Allegro. This section discusses maintaining the battery pack and
backup supply.
There are three types of batteries and a backup capacitor associated with
the Allegro:
❏ NiMH battery pack
❏ Battery holder for three alkaline cells (optional accessory)
❏ Internal lithium backup battery (powers the real time clock and
CMOS RAM)
❏ Super capacitor that serves as the RAM backup (maintains the RAM
while you change the battery pack)
▲ ▲ ▲ ▲ ▲ Main Power Source
The Allegro is powered by a rechargeable nickel metal hydride (NiMH)
battery pack. The battery compartment is accessed through a door on
the back of the Allegro case. The NiMH battery pack is shipped along
with the Allegro but is not installed at the factory.
Installing the Battery Pack for the First Time
Upon receiving the Allegro, you must install and then charge the battery
pack. To do this, complete the following:
1) Push up the sliding latches on the sides of the Allegro to open the
battery compartment door.
2) Place the NiMH battery pack in the left side of the battery
compartment, push down, and slide it all the way to the right.
3) Push the battery door closed until each latch clicks into place.