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 The
possibility of acid damage on the
outside of the battery raises another
point in proper battery care.
To maintain proper electrical contact
during operation and charging, battery
terminals must be kept clean and
free of corrosion. In addition,
residue from acid overflow mixed
with an accumulation of dirt of
the top of the battery can result
in current flow between terminals
and cause the battery to slowly
discharge itself. A few simple procedures
can eliminate these problems and
prolong the life of the battery.
If battery terminals and clamps
begin to show signs of corrosion,
disconnect the cables and clean
the terminals and clamps with a
wire brush. An inexpensive tool
made specifically for this purpose
is available at most auto supply
stores. It is equipped with one
cone shaped brush for cleaning the
inside of the clamps and a circular,
ring shaped brush for cleaning the
battery posts or terminals. A solution
of water and baking soda may be
used if needed. After cleaning and
reconnecting the cables, apply a
thin coat of petroleum jelly (Vaseline)
to the posts and clamps to reduce
future corrosion.
At least one manufacturer suggests
removing the batteries from the
wheelchair every three months and
giving them a thorough cleaning.
This must be done very carefully,
however. It is recommended that
suitable gloves and safety goggles
be worn when handling the batteries.
Once disconnected and removed from
the chair the batteries should not
be placed directly on the floor
or any other unprotected surface.
Several thicknesses of newspaper
will usually serve as a temporary
protective pad. The batteries should
then be taken outside, and rinsed
with plain water...washed down with
a solution of two cups of water
and four tablespoons of baking soda...then
rinsed again. If the wheelchair
has a battery box or container it
should be cleaned inside and out
in a similar manner. All components
should be allowed to dry before
being returned to the chair.
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