Hunter 50 - Batteries and Battery Switches

Hu
nt
e
r
50
• D
C
Electric
7.
3
7.1.1 Batteries
DA NG ER
! !
Batteries contain Sulfuric Acid and can cause severe
p
ersonal in
j
ur
y
if mishandled.
Avoid contact with e
y
es, skin, or clothin
g
. In case of
c
ontact, flush with water at least 15 minutes.
If swallowed, drink lar
g
e quantities of water or Milk
o
f Ma
g
nesia, beaten e
gg
, or ve
g
etable oil and
g
et
m
e
di
ca
l
attent
i
on
i
mme
di
ate
ly.
WARNING
! !
Char
g
in
g
batteries produces
g
asses which can ex-
p
lode if i
g
nited.
E
xp
l
os
i
on can s
h
atter a
b
atter
y
.
Batter
y
acid can cause severe personal in
j
ur
y
such
a
s blindness.
K
eep flame, spark, and smokin
g
materials awa
y
from
batteries while char
g
in
g
. Char
g
e in a well ventilated
area.
The D
C
Sy
stem derives its power
f
rom two separate
batter
y
banks.
A circuit breaker on the batter
y
switch panel connects
the batter
y
to the electrical s
y
stem. The batteries suppl
y
power, first to the batter
y
selector switch then to the DC
side o
f
the main control panel, and
f
inall
y
throu
g
h the
distribution panel. From these panels, power is distrib-
ute
d
to suc
h
equ
i
pment as ca
bi
n
ligh
ts,
i
nstruments, an
d
accesso
ri
es
.
The ne
g
ative terminal of all banks are attached to the DC
G
round connection on the en
g
ine. This s
y
stem, known as
the ne
g
ative
g
round s
y
stem, is the approved s
y
stem
f
or
marine DC electrical s
y
stems. The batter
y
wirin
g
s
y
stem
has two color coded wires. The
y
ellow wire is the
g
round
(
ne
g
ative
)
, and the red wire is
(
positive
)
.
To avoid explosions, do not use
j
umper cables and a
booster batter
y
to start the en
g
ine. I
f
batteries are dead,
t
h
en remove an
d
rec
h
ar
g
e t
h
em as
h
ore
.
Batteries produce h
y
dro
g
en and ox
yg
en
g
asses when
t
h
e
y
are
b
e
i
n
g
c
h
ar
g
e
d
.
Th
ese exp
l
os
i
ve
g
asses escape
throu
g
h the vent
/f
ill caps and ma
y
f
orm an explosive
atmosphere around the batter
y
i
f
ventilation is poor. This
g
as ma
y
remain around the batter
y
for several hours after
c
har
g
in
g
.
S
parks or
f
lame can i
g
nite the
g
as and cause
an explosion
.
WARNING
! !
Batteries contain a lar
g
e amount of potential
el
ectr
i
ca
l
ener
gy!
E
xtreme care must taken when workin
g
with
batteries.
A
n
i
mproper connect
i
on to a
b
atter
y
can re
l
ease
e
nou
g
h ener
gy
to cause severe personal in
j
ur
y
or
fire.
The followin
g
precautions must be taken
:
The wirin
g
to the batteries must have proper over
current protection in the form of fuse or breakers
.
U
se onl
y
batter
y
char
g
ers that have been listed b
y
a
test
i
n
g
a
g
enc
y
, suc
h
as
U
n
d
erwr
i
ters
L
a
b
orator
i
es,
In
c.
F
o
ll
ow t
h
e w
i
r
i
n
g
di
a
g
rams exact
ly.
T
o remove the batter
y:
Turn o
ff
all power drawin
g
breakers and isolate bat-
ter
y
.
R
emove ne
g
ative
(
-
)
cable
f
irst, then the positive
(
+
).
Wh
en
y
ou
i
nsta
ll
a
b
atter
y
, t
h
e
b
atter
y
connect
i
ons must
be made properl
y.
Attach the positive cable to the positive
(
+
)
terminal
o
n t
h
e
b
atter
y.
Attach the ne
g
ative cable to the ne
g
ative
(
-
)
terminal
o
n t
h
e
b
atter
y.
Note: Batteries should always be removed and installed by
trained, qualified persons to avoid all damages.
7.1.2 Batter
y
Switch
E
ach batter
y
bank has a batter
y
selector switch
(
Fi
g
. 7.2
)
l
oca
t
ed
in th
e
bu
nk f
ace
in
s
i
de
o
f th
e
c
h
a
rt t
ab
l
e.
The selector switches are marked as to which batter
y
the
y
control. Turnin
g
the selector switch to the
O
ff posi-
tion turns
p
ower off to the res
p
ective circuits, likewise, the
O
n position turns power on.
•
•
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1.
2.
1.
2
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