SECTION 12—BATTERIES
Part No 1149267
69
TDX® SC TDX® Spree
Charging Batteries
WARNING
NEVER attempt to recharge the batteries by attaching cables directly to the
battery terminals or clamps. ALWAYS use the recharging plug located on the back
of the joystick.
DO NOT attempt to recharge the batteries and operate the power wheelchair at
the same time.
During use and charging, unsealed batteries will vent hydrogen gas which is
explosive in the right concentration with air.
CAUTION
Always charge new batteries before initial use or battery life will be reduced.
NOTE:
For
this
procedure,
refer
to
FIGURE 12.9
on
page 70.
NOTE:
New
batteries
MUST
be
fully
charged
prior
to
initial
use
of
the
wheelchair.
NOTE:
As
a
general
rule,
batteries
should
be
recharged
daily
to
assure
the
longest
possible
life
and
minimize
the
required
charging
time.
Plan
to
recharge
the
batteries
when
it
is
anticipated
the
wheelchair
will
not
be
used
for
a
long
period
of
time.
The
range
per
battery
charge
using
recommended
batteries
should
be
approximately
5
to
9
hours
of
typical
operation.
Extensive
use
on
inclines
may
substantially
reduce
per
charge
mileage.
Description and Use of Battery Chargers
The
charger
automatically
reduces
the
charge
from
an
initially
high
rate
to
a
zero
reading
at
a
fully
charged
condition.
If
left
unattended,
the
charger
should
automatically
shut
‐
off
when
full
charge
is
obtained.
There
are
some
basic
concepts
which
will
help
you
understand
this
automatic
process.
They
are:
The
amount
of
electrical
current
drawn
within
a
given
time
to
charge
a
battery
is
called
the
“charge
rate”.
If,
due
to
usage,
the
charge
stored
in
the
battery
is
low,
the
charge
rate
is
high,
as
indicated
by
the
GREEN
light
on
the
charger.
Initially,
the
GREEN
light
will
stay
illuminated
for
a
short
period
of
time
followed
by
a
longer
period
of
off
time.
As
a
charge
builds
up,
the
charge
rate
is
reduced,
and
the
GREEN
light
will
stay
illuminated
for
a
longer
period
of
time
followed
by
a
shorter
off
time.
WARNING
NEVER leave the charger unattended when the breaker has tripped. A fault condi-
tion exists. Unplug and discontinue using immediately. Contact an Invacare dealer.