NPX-25T Datasheet, PDF (4/12 Pages) List of Unclassifed Manufacturers – SELECTION GUIDE

Features and Benefits
Sealed pure-lead cells were invented by a predecessor
company of EnerSys in 1973. The purity of the materials
used is key to supporting the GENESIS battery’s
performance benefits. A longer service life, meaning
fewer replacements and the cost associated with it,
combined with higher reliability and fewer system
failures, result in a lower long-term cost of ownership to
the end user or equipment owner.
What are the advantages of EnerSys technology?
1. Power density - Per unit weight, the power provided by
pure lead-tin products offers the greatest high-rate
power density for your energy dollar. GENESIS’ greater
volumetric power allows engineers to consider more
energy-supporting features or design smaller, lighter
packages.
At high-rate and pulse discharges, EnerSys’ GENESIS
products offer the best performance value when
compared with competitive product in applications at
less than 100 minutes of discharge.
lead batteries experience internal moisture loss from
venting and case side wall distention, the GENESIS,
with its steel can (metal jacket) and high venting
pressure, does not experience these life-robbing
conditions. GENESIS has twice the delivered capacity
of conventional sealed-lead batteries at temperatures
below -20°C, offering unparalleled low-temperature
performance.
GENESIS electrodes are thinner, allowing more
electrodes per cell, and therefore greater electrode
surface area than conventional sealed-lead, thick
electrode batteries. As a result, our batteries can reach
a high state of charge in fast-charging applications in
one-fourth the time of conventional, sealed-lead, thick-
plate batteries. This is 50% to 100% overall better
performance for your energy dollar.
6. Rugged construction - Due to their strong external
packaging and internal pure lead-tin composition,
EnerSys’ products can withstand not only extreme
temperatures but also harsh usage.
The pure lead-tin advantage
2. Cycle life - Compared to competitive lead products
(offering up to 200 full cycles), pure lead-tin batteries
provide 50% to 200% greater full cycle capability.
GENESIS product will deliver up to 400 cycles (80%
DOD, C/5). And, because GENESIS incorporates a high
vent-pressure design, EnerSys’ products experience no
“dry out” failure mode from repeated recharges.
3. Float life - Conventional sealed-lead batteries vary
greatly in specified standby life: from three to six years
at 20°C, C/20. GENESIS, however, offer a ten-year
design life at 25°C, C/5, to 80% of rated capacity.
At 20° C, GENESIS Single Cells offer a fifteen-year
design life.
4. High stable voltage delivery - The high stable voltage
delivery of a pure lead-tin battery results from its low
internal resistance. The flat discharge voltage profile of
our batteries, similar to nickel cadmium, combined
with our products’ low internal resistance, means our
batteries are able to discharge and recharge their
power more quickly and efficiently and offer greater
application flexibility. The pure lead-tin construction
also gives more watts-per-unit weight at high
discharge rates.
5. Widest temperature range - Due to the product’s
strong construction and high vent pressures, these
batteries will maintain their performance and physical
parameters in extreme conditions. At high
temperatures, the chemical reaction in a battery that
causes aging is accelerated. Pure lead-tin technology
resists that chemical reaction more effectively than
alloyed lead, thus allowing a battery to have a longer
service life. At high temperatures, when conventional
Vent pressure
Fast-recharge capability
High-temperature
tolerance
Low-temperature
performance
High-temperature
performance
None Low
Fair Moderate Excellent High
GENESIS pure lead-tin technology
Conventional technology
GENESIS external case for the EP product is
constructed from UL 94V-0 rated non-halogenated
flame-retardant materials. GENESIS products are shock
and vibration resistant, designed to offer higher
tolerance levels to meet demanding applications,
including those in commercial and outdoor
applications. The company's focus on battery-case
integrity and high vent pressure, coupled with pure
lead-tin's low grid-corrosion rate, means GENESIS
provide the longest service life possible.
4
www.enersys.com
Publication No: US-GPL-SG-002 - July 2006