Juniper Systems Allegro DOS Manual - Manual (Page 52)

Page 2-34 Hardware Features
NiMH Battery Pack's Useful Life
Battery packs can be recharged approximately 600 times before they
need to be replaced. This is dependent on the temperatures they have
been exposed to, operating conditions, and charging and discharging
practices.
Recycling the NiMH Batteries
The NiMH batteries inside the Allegro battery packs are recyclable. We
are voluntarily participating in an industry program to collect and
recycle these batteries when they are taken out of service in the United
States or Canada.
The recycling program provides a convenient alternative to placing used
NiMH batteries into the trash or the municipal waste stream. Our
involvement in this program is part of our commitment to preserving
our environment and conserving our natural resources.
Because most battery recycling bins available for public use do not
accept NiMH batteries, you are welcome to return the spent battery
packs used in the Allegro to our office and we will recycle the batteries
for you. If you plan to do this, please contact us for information on how
to properly package and ship the batteries.
Spare NiMH Battery Packs
Spare battery packs should be stored in a cool location. Avoid placing
battery packs “contact side” down on a metal surface. Also, do not stack
packs so that their contacts touch one another.
These practices will cause the batteries to drain. The shelf life of a
battery pack is about two months. Before using a spare pack, you should
charge it.
▲ ▲ ▲ ▲ ▲ Short-Term Backup Supply
The Allegro has a super capacitor that behaves like a backup battery.
When the main batteries are removed, the capacitor maintains the RAM
for up to five minutes, allowing you plenty of time to change the
batteries.
The capacitor cannot operate the Allegro. The batteries charge the
capacitor. It holds a charge as long as the batteries or external power are
supplied. When a battery pack is replaced, the capacitor charges up to
full capacity in about two minutes.