Solar Deep Draw Maintenance Free
The Best Sealed Lead Acid Batteries: Sun Xtender
There are lots of options
when it comes to batteries for renewable energy systems, the
most common being open cell lead acid, gel cell sealed lead acid
and AGM sealed lead acid.
AGM stands for Absorbent
Glass Mat, the most advanced development in lead acid
battery technology created by Concorde Battery Corporation,
one of the world's largest manufacturers of aircraft
Sun Xtender has been designed specifically
for renewable energy applications and out-performs flooded
(wet) lead acid, gel and all the other AGM brands -
Sun Xtender's AGM
design is the original Absorbent Glass Mat battery
technology adopted by the U.S. Military where optimum
battery performance and reliability can be a real life
or death situation.
Sun Xtender uses
Valve Regulated Lead Acid construction (VRLA).
VRLA is the designation for low-maintenance
lead-acid rechargeable batteries. Because of their
construction, VRLA batteries do not require regular
addition of water to the cells.
AGM batteries are
maintenance free. There is no "just add water"
requirement with Sun Xtender.
Sun Xtender batteries are
non-spillable and can be used upright, or positioned on
end or side. This can be a nice advantage when
battery space is limited.
Deep Cycle - Unique high density plate technology provides superior
reliability, power and extended life cycle.
Sun Xtender uses pure
lead-calcium grids with thicker plates than industry
standards to assure longer life and power.
for Rugged Conditions
Proprietary PolyGuard™ Microporous Polyethylene Separators are used
around the positive plate and AGM to prevent shorting
from shock and vibration. Sun Xtender is the only
manufacturer providing this added level of protection.
This may not seem important for a stationary battery
bank but is a good indication of the structural
integrity of the battery enclosure - an important safety
consideration. The construction of
Sun Xtender allows them to be
used in environments where other batteries would
literally fall to pieces such as in
boats, high end yachts, in aviation, the RV
industry and for rough and rugged
copolymer polypropylene high impact reinforced case
restrains from bulging and damage.
Xtenders Charge Faster
The low impedance
(resistance) design means that Sun Xtenders charge
faster. Sun Xtender AGMs lose as little as 4 percent of
the charge current to heat, whereas wet open cells can
lose as much as 15 to 20 percent. This is defined
by Peukert's Law which is a
mathematical expression of
the capacity of a lead-acid battery in terms of the rate
at which it can be charged and
discharged. Sun Xtender AGM
batteries can accept and
dispense charge at a higher rate than flooded
cells due to Sun Xtender's very low Peukert's exponent.
lead acid batteries cannot
accept or deliver more than
25% of their rated amp-hour capacity in amps quickly without
plummeting the available
capacity or wasting charging energy though the
creation of heat. Sun Xtenders are not only deep
draw but also "quick draw" when needed.
Due to their very low internal resistance AGM batteries
will fully charge at a lower voltage
and can accept a much larger charge current. When you use a
sophisticated charge controller
like Phocos which uses State of Charge and three stage Pulse Width Modulation or Maximum
Power Point Tracking, you will be surprised by how fast
these batteries will charge.
The higher charge efficiency of AGMs can
contribute to significant savings when it comes to the
use of expensive renewable energy sources as your charging system
can be up to 15% smaller or charge faster. This is a
GIANT advantage in areas with fewer sun hours per day
and frequent cloudiness, especially in the winter
months. Faster charge rates also mean that if
you have diverted loads, more useful energy can power
those loads sooner and longer, like heating water, for
Easy Installation & No
Battery Box Required
(posts) are made from copper alloy and are corrosion
free as well as allowing for maximum conductivity.
No battery box or
enclosure is required. DO NOT install Sun Xtender
batteries in a sealed compartment or container.
Sun Xtender batteries
are fully charged at the factory. Wet cell lead
acid batteries typically lose up to 1% of their charge
per day due to self-discharge, while VRLAs only lose
1-3% per month.
Best of all, and
especially important for our international customers
around the world, Sun Xtender products are transport
Hazmat exempt. They can be shipped by land, sea or
air complete with electrolyte, ready to go to work as
soon as they arrive.
Sun Xtender products
are a UL Registered component, totally recyclable and
Warranty is 5
Sun Xtenders are
manufactured in the USA.
Into The 21st Century (pun intended)
When you compare all of
these features and benefits, it is obvious that Sun Xtenders
are the most advanced renewable energy lead acid batteries in the
world. Prices are very competitive, and even if a
little higher than open cell wet lead acid batteries which
are today not unlike the first practical lead acid battery
invented in 1859 by French inventor Gaston Plante, their
performance more than offsets the cost.
Bring your renewable
energy system fully into the 21st Century with Sun Xtender.
This is the only battery line that we sell and for all the
If you will contact us and
tell us what you want to do, we will help you choose EXACTLY
the right Sun Xtender for your renewable energy
application. You will be glad you did, and we will be
happy to help. Without customers, we have no business.
With happy customers who come back for more and who tell
their friends about us, we have the best business in the
world. And, you will have the best AGM batteries in the world:
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