AGM (Absorbed Glass Mat) batteries
are totally sealed and as the electrolyte has been absorbed
into glass mat separators there is no chance of leakages.
AGM batteries give excellent deep cycle capability making
them ideal for all mobility applications such as wheelchairs,
mobility scooters, stairlifts, hoists etc. With a low self
discharge giving a long shelf life (power loss over time
whilst not being used) they will always be ready to perform.
Another advantage is that they are Valve Regulated Lead Acid
(VRLA) batteries. The battery lid is constructed with a labyrinth
of valves which in effect directs the gases produced under
load or charging back into the battery.This range has a nominal
8 year life in standby use and for cyclic applications approximately
350 charge/discharge cycles at 75% depth of discharge.
GEL batteries are similar to AGM batteries
except that an immobilised electrolyte is used. GEL batteries
are more tolerant to deeper cycling and also have a very
low self discharge. GEL batteries were specially designed
for maintenance free power supply and are considered worldwide
to be the best product for cyclic applications such as wheelchairs.
Pound for pound you will find NUMAX
GEL hard to beat for
all round performance and reliability.
YUASA AGM has applied almost a century’s
experience in lead acid battery technology in the production
of their AGM type batteries. This range is recognised across
the world as the ‘industry standard’ in valve
regulated lead acid batteries (VRLA). The Yuasa product is
available in a wide range of sizes to suit all applications
from standby power to the arduous requirements of cyclic
applications such as wheelchairs, mobility scooters, stairlifts
and hoists.
Sonnenschein GEL is considered to be the bench mark which manufacturers aspire to. The GEL battery was originally developed
by Sonnenschein of Germany and the performance capabilities
of this technology have not been matched to date on the world-wide
market by any other comparable product. The A500 Cyclic Range
features excellent cycling properties, ruggedness and reliability.
These batteries are designed to have a long service life and
be able to cope with an increased number of cycles. They can
be charged and discharged up to 800 times according to IEC
896 part 2, and no other sealed battery on the market can do
this.
This range of batteries is completely maintenance free
and will not leak acid even with improper treatment such as
damage to the case. For this reason the battery may be carried
on scheduled and chartered aeroplanes giving complete freedom
to travel with one’s mobility equipment.  They
are extremely low gassing therefore they are particularly suitable
for operation and re-charging in the home. So if your freedom
of movement is restricted and you use modern mobility aids
such as a wheelchair or mobility scooter then the Sonnenschein
dryfit A500 cyclic range is one of the best batteries you can
buy. |
