Horizon & Sundowner
Owners Manual
06/00
Section H
Page 2
NOTICE
DO NOT turn the battery selector switch to the
OFF position while the engine is running. Al-
ternator and wiring damage could result.
1 - Turning the switch to position 1 will use battery #1
to power the engine and 12 volt equipment. Battery #2
will be isolated and remain in reserve. Only battery #1
will be charged by the alternator.
2 - Turning the switch to position 2 will use battery #2.
Battery #1 is isolated and remains in reserve. Only bat-
tery #2 will be charged by the alternator.
ALL - With the battery selector switch in the ALL po-
sition, the batteries are connected in parallel. Both bat-
teries will be used by the engine and all 12 volt equip-
ment. Both batteries will be charged by the alternator.
However, the batteries will charge at a slower rate com-
pared to setting the switch in the other positions.
The use of one battery at a time is recommended. Posi-
tion the battery selector switch to either the #1 or #2
position.
Under normal conditions, avoid using the ALL position.
Use the ALL position only when a single battery is not
capable of starting the engine.
Four Winns® recommends alternating between batter-
ies during boating. Depending upon boating use, this
may increase battery longevity . Use battery #1 for the
first day of a cruise and switch to battery #2 on the sec-
ond day.
Position the battery selector switch to the battery that
has sufficient power to start the engine (normally posi-
tion 1). After the engine is running, turn the battery
selector switch to the battery that has the lowest charge.
This will allow the alternator to charge the low battery.
Utilizing the battery selector switch in this manner (in-
stead of using the ALL position) will supply a greater
charge to the battery.
FOR EXAMPLE: If battery #1 is fully charged and bat-
tery #2 is in need of a charge, use battery #1 to start the
engine. After the engine is running and warmed-up, turn
the battery selector switch to the #2 position. This will
permit the alternator to charge the low, #2 battery.
When installing dual batteries, proceed as follows:
1. Connect each of the red battery cables leading from
the battery selector switch to the positive (+) termi-
nal on each of the two batteries.
Figure H2: Single Engine-Dual Battery Installation
NOTICE
Be sure both cables are installed on the positive
(+) battery terminals.
2. Connect the black battery cable to the port negative
(-) battery terminal (see Section H-2 above). Con-
nect the other black battery cable to the starboard
negative (-) battery terminal.
When disconnecting the cables from the bat-
tery, make sure all switches are off and discon-
nect the black negative cable(s) first to prevent
spark.
C. Battery Switch Operation - 230H - 265S
Power to the engine and all 12 volt electrical equipment
(except the automatic bilge pump and refrigerator) is
controlled by the battery selector switch. See Figure H2.
Battery selector switch positions for the 230H-265S:
OFF - With the battery selector switch in the OFF
position, all 12 volt power to the boat is shut off com-
pletely except to the automatic bilge pump. A separate
fuse is provided on the battery switch panel for the auto-
matic bilge pump. Always turn the battery selector switch
to the OFF position when the boat is removed from the
water.
7A
AUTU
BILGE
SWITCH
RED BATTERY CABLE
BLACK BATTERY CABLE
BLACK
BATTERY
CABLE
ENGINE
STARTER
SOLENOID
RED
BATTERY
CABLE
R
E
D
B
AT
TE
R
Y
C
A
B
LE
B
A
TT
ER
Y
B
A
TT
ER
Y