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Kawasaki KZ1300-A1 Quick Reference Manual Page 231

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MAINTENENCE--ELECTRICAL
Initial charge
New
batteries
for
Kawasaki motorcycles
are
dry
charged and can
be used directly
after adding
the elec-
trolyte.
However, the effect of the dry charge dete-
riotates somewhat
during
storage,
especially
if
any
air
has
entered the
battery
from
imperfect
sealing.
Therefore,
it is best to give the battery an initial charge
before using
it in
order to ensure long battery life.
I
WARNING
I
Becaus.e the battery gives off an explosive
., . .... _ _ _ •• gas mixture of hydrogen and oxygen,
keep any sparks or open flame away from the battery
during charging.
-Pour
a 1.280 (specific
gravity
at
20°C or 68°
F) sulphu-
ric acid solution into
each
cell
of the battery up
to
the
upper level
line.
-Let the battery stand
for
30
minutes,
adding
more acid
if the level
drops during this time.
NOTES:
1.
If
the temperature
of
the
solution is over
30°C (85°F)
cool
the
solution before pouring
it
into
the
battery.
2.
After pouring the acid
into
the battery, start charging
the
battery within 12 hours.
-Leaving
the caps
off the
cells,
connect the battery to
a charger, set the charging
rate
at
1/1
0
the
battery
capacity,
and charge it
for 10 hours.
For
example,
if the
battery
is rated at
20AH,
the charging rate
would be
2 ampere.
If a constant
voltage charger is
used
,
the voltage
must be adjusted periodically
to
keep
the current at a constant
value.
~ ~~~: t~~f~ra~~;~~;t::~~~:ro!~~:::::
reduce the charging rate to bring down the temperature,
and increase the charging time proportionately.
-After
charging,
check the electrolyte level in each cell.
If the level has dropped, add distilled
water to
bring
it back up
to the
upper level
line.
-Check the results of charging by measuring the specific
gravity
of
each
cell and
by measuring battery
voltage.
Battery
voltage
of
a 12 volt
battery directly
after the
completion
of
charging should
be 15
to
16
volts.
Ordinary charge
I
WARNING
I
Becau~
the battery gives off an explosive
.,. _ _ _ _ •• gas mixture of hydrogen and oxygen,
keep any sparks or open flame away from the battery
during charging.
-Clean off the battery using a solution of baking
soda
and
water.
Make especially
sure
that the terminals
are
clean
.
Table K 1
Bettery Troubleshooting Guide
Good Battery
-If
the
electrolyte
level is
low in any cell
,
fill to over the
lower level line but not up to the upper level line since
the
level
rises during
charging.
Figure the charging rate
to
be between 1/10 and 3/10 of battery
capacity.
For
example, the maximum charging rate for a 20AH battery
would be 3/10 x 20 which equals 6
amperes.
~ ~:e~i~::: ~.:a~t~;~I~t ;u~~tet~!g~~::~~
Charging at a higher rate causes excass heat, which can
warp the plates and cause internal shorting. Higher than
normal charging rates also cause the plates to shed active
material. Deposits will accumulate, and can cause
inter-
nal shorting.
-Measure the specific gravity of the
electrolyte,
and
use
the
graph,
Fig.
K 2, to determine the percentage of
discharge. Multiply
the capacity
of the battery by the
percentage of discharge to find the amount of discharge
in
ampere-hours.
Use this figure in
the
formula below
to compute charging time.
.
.
(
) Amount of discharge
(AH) 1
2
15
Charging time hours
.
()
x.
' " "'
.
charging current A
-Remove
the
caps
from
all the
cells,
and begin charging
the
battery
at
the
rate just
calculated. If
a
constant
voltage charger
is
used,
the
voltage
will have
to
be
adjusted periodically to maintain charging current
at a constant value.
~ ~~: t~~f~ra~~;~~;t~:~~~:ro!~~:::::
reduce the charging rate to bring down the temperature,
and increase charging time proportionately.
-After charging, check the electrolyte
level
in each cell.
If the level has dropped
,
add distilled
.water to
bring
it back up to the upper level line.
-Check charging results by measuring
the
specific gravity
of each cell and by measuring battery
voltage.
Battery
voltage
of
a
12
volt
battery directly after the completion
of charging should be 15 to 16
volts
and the specific
gravity of the electrolyte should be more than
1.250.
If the voltage is lower than this, the battery is not
completely charged or can no longer take a full charge.
If the specific gravity of anyone cell is lower than
1.250, there may be damage in the cell.
Test charging
When the battery is suspected of being defective,
first
inspect the points noted in the Table below. The battery
can be restored by
charging
it with the ordinary
charge.
Suspect Battery
Action
Plates
(+)
chocolate color
white
(sulphated);
+ plates
Replace
(-)
gray
broken or corroded
Sediment
none, or small amount
sediment up to plates, causing short
Replace
Voltage
above 12 volts
below 12
volts
Test charge
Electrolyte Level
above
plates
below
top
of plates
F ill
an
d
tes
t
ch
arge
Specific Gravity
above
1.200
in all cells;
no two
below 1.100, or difference of more
Test
charge
cells
more
than
0.020 different
than
0.020 between two
cells
231

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