Electric Wheels Inc. (EWI) is a dealer for the EWID Lithium Iron
Phosphate batteries, 72 volt, 100 ah.
EWID Lithium Iron
Phosphate batteries
are ONE-THIRD the weight of Lead Acid Group 31 100 ah batteries.
$6,500.00
Plus freight from Salem, Oregon
High Discharge Rate Capability
Among the best for all high power output demands
Extraordinary Long Cycle Life: 5-7 years
Achieves up to 2000 cycles per life-over 7 times the life of
Lead
Acid and
3 times of NIMH and 3-4 times of
LI-MN battery.
Long Service Life
Over 6-7 years-up to 2000 cycles (80% DOD)
Rapid Charging Ability
2C fast charge 85% within half hour
No memory effect
Nickel Batteries exhibit memory problems
Environmentally Friendly
Non-toxic, Non-contaminating-no rare metals, UL, CE,
SGS/ROHS
approved.
Easy to dispose of.... No Heavy Metals
COMPARISON CHART AND DATA
AMONG VARIOUS LITHIUM BASE BATTERIES
Features
|
C-LiFePO4 |
LiCoO2 |
LiMn2O4 |
NIMH |
SAFETY AND
ENVIRONMENTAL
CONCERNS
|
Safest: no
explosion, no
smoke, no fire
under abused
working condition
and the most
environmentally
friendly.
Non-toxic, no
rare
metal,
fire
resistant, easily
disposed
of
|
Not stable
- very
dangerous |
Acceptable
but
also be
explosive
and
on fire
under
abused
working
condition
|
Not stable
will
be on
fire even
just under
high
temperature
|
CYCLE LIFE
|
Best among all
the listed
groups-Up to
2000 times
(80% DOD)
condition) |
Acceptable
(<500
times) |
Unacceptable
(around 300
times) |
Below 500
times |
POWER WEIGHT
DENSITY
|
Acceptable 65%
weight of NiMH
|
Best |
Acceptable |
Low |
LONG TERM
COST |
Most Economical
|
High |
Acceptable |
High |
THERMAL
PERFORMANCE
|
Excellent
(-45°C to
+70°C)
|
Decays
beyond
55°C to
-20°C
|
Decays
extremely
fast over
50°C
|
Decays
faster
in high
temperature
|
|
- Lead Acid: though lower in cost and safety
acceptable; it is extremely toxic, the worst for
the environment, short cycle life, heavy in
weight,
not the best choice for many reasons.
- Nickel Hydride: exhibits low Power Weight
Density,
decays faster in high temperature,
memory effect
not suitable for high output
usage.
- The C-coated Lithium Iron Phosphate Battery:
has been proven as the most environmental
friendly
battery. It is the safest with longest life
cycle and
most suitable for high output usage.
It is also the
best for storage and back-up
applications.
|
|
