Anticipating the
growing awareness for the need to care more for our environment, we
have had an 'alternative' battery development program in place since
1996. Whilst the nickel cadmium battery is still specified in the majority
of our emergency lighting products, there is no doubt that it is becoming
expensive to dispose of both financially and environmentally due to
the heavy metals and other pollutants which form part of the chemistry
of each cell.
We have been working
closely with both sealed and recombination lead acid battery manufacturers
and nickel metal hydride manufacturers to find the most economical
and practical alternative to nickel cadmium. Our experience with nickel
metal hydride battery packs used in self contained luminaires sited
in locations with elevated temperatures is second to none and we are
confident that these batteries, when used in the correct way, have
many advantages over other battery technologies.
These are supplied
in 2 and 3 cell variations to enable most cell combinations to be easily
constructed.
NiMh
batteries are kinder to the environment than NiCd and are cheaper to
dispose of at the end of life
NiMh
batteries have a better power density than NiCd and lead acid batteries
from a smaller size cell, so can be user in products where space is
limited
High
temperature NiMh batteries are particularly designed for emergency
lighting applications which some alternative battery technologies cannot
provide
NiMh
batteries have a lower cost and longer active life than Lithium batteries,
which mean being environmentally friendly is not too costly
NiMh
battery technology is advancing all the time and there is little doubt
they will become increasingly popular, so designing battery and product
layouts using NiMh can sizes is an investment in the future.
Whether the future of your next emergency lighting installation or
the future of the world is your prime consideration, NiMh batteries should
feature high on your list of priorities.
TECHNICAL DETAILS
FOR BATTERY
PACKS
Cells
1.5 AH
Nicad for 1 hour duration modules/PCB's. 4AH Nicad + NMH for 3 hour
duration modules/PCB's
Permitted cell
temperature
Minimum 0°C, maximum 54°C, to give the specified performance for an
expected life of 4
years
Battery connections
Batteries are supplied with tag connections with the exception of
dual inline and plate versions, which are fitted with a non reversible plug. The
approximate connections are appropriate connections are
supplied with the batteries.
Battery fixing
Batteries are supplied with plastic end caps or metal plates with
screw inserts with provision for screw fixings.
