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Chrysler 1956 Windsor - BATTERY TESTING AND CHARGING

Chrysler 1956 Windsor
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I
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I
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ELECTRICAL
SYSTEM
DESCRIPTION
A 12'-volt, negat.ive gr
ound
electrica
l
system
has
been incorporated in all 1956 Model Chrysler
cars.
The
12-volt system is being llsed to
meet
the
electrical
requiremenl,;
for
starting
and igni-
tion
with
higher
compression engines. The neg-
ative
ground
system
was
adopted
to
allow
for
the
use
of
the
new
tra
n
sistor
type
of
r.adio in-
stallations.
The
change
from
six
to
12-volts
and
from
a
positive
to
a
negative
ground
system
has
created
the
need
for
a
completely
new
electrical
system
in all 1956
Chrysle
r
Cars.
A
green
name
plate
ident.ifies a
unit
of
the
12-
volt system.
The
six-volt system used a red
name plate.
The methods of servicing and of
testing
the
new 12-volt
system
and
its
components
requires
the
use
of
testing
equipment
that
is
capable
of
testing
12-volt
systems.
BATTERY
The
C-711\1odel
Chrysler
is
equipped
with
an
11
plate, 60
ampere
hour
12-volt
Willard
battery
(1I0-ll-60)
(West
Coast
releases
use
Auto-Lite
ll-HS-60).
Fig. 1 - Typical 12-Va
lt
Battery (Cut-a-way View)
25
The
C-72, C-73
and
C·70 Model
Chrys!ers
use
a 13 plate,
70
ampere
hOUr
12-volt
Auto-Lite
battery
(12-H-70).
Figure
1.
BATTERY TESTING
A
number
of
quick
checks
and
tests
can
be
made
on a
battery
to
determine
whether
or
not
cor-
rective
maintenance
is
required.
These
checks
can
be clmisified
as
follows:
1.
Visual
Inspection.
2. Specific
Gravity
Test.
3.
Voltage
Tests
(Open
Circuit
and Ca-
pacity).
Visu
al
Inspection
I
nspect
the
electrolyte
level,
inspect
for
cracked
case
and
check hold
down
clamps
for
proper
tightening.
Check
the
top
of
the
battery
for
dirt
and
excessive
corrosion.
The
battery
should
be
free
of
accumu
l
ations
of
dirt;
excessive
corro-
sion
is
an
indication
of
electrolyte
leakage
or
boiling
over
due
to
a
high
charging
rate.
Corro-
sion
can
also
be
caused
from
overfilling
the
battery
when
adding
water.
Specific Gravity Test
Test
the
specific graviLy
of
the
battery
with
an
accurate
hydrometer.
Where
the
electrolyte
level is
too
low to
make
a
test
add
the
battery
water
but
do
not
attempt
to
test
the
gravity
until
the
battery
has
been
returned
to :-;ervice
operation
for
at
leal'L fOur
hours
of
normal
driving.
The
specific
gravity
of
the
electrolyte
will
vary
4
points
(.004)
with
every
10
degrees
F.
change
in
temperature.
Subtract
(.004)
four
points
for
each
10
degrees
below
and add
.004
for
each
10
degrees
above
80
degrees
F.
Read-
ings
must
be
corrected
Lo
80
degrees
F.
before
interpreting
as
follow~:
A fully
charged
battery
has
a specific
gravity
reading
of
1.280
to
1.300
for
all
batteries
for
use in
temperate
climates.
A
battery
that
has
a specific
gravity
reading
of 1.250
or
less
and
all cells
read
evenly
within
30
specific
points
(.030)
of
each
other
requires
recharging.

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