Battery Wiring With House (Accessory) Battery - Yamaha F150B Service Manual

RIG
GING

Battery wiring with house (accessory) battery

• When only one battery is used for one engine, connect the positive battery cable and the
isolator lead to the positive battery terminal. If the isolator lead is left unconnected, acci-
dental contact of the isolator lead with the negative terminal of the battery can cause a
short circuit which may result in a fire.
• When using a house battery, a negative battery cable must be installed between the house
battery and the engine battery. This cable must be sized equivalent to the engine battery
cables or larger AWG cable size in accordance with ABYC specifications.
• Battery switches must be capable of meeting intermittent and continuous current ratings
for engines and accessories.
Battery switch Battery switch
Battery switch
3-19
Rigging information
Outboard
motor
Black
Black
1
Outboard
motor
Black
Black
Isolator lead
Battery switch
ON/OFF
Red
2
House House
battery battery
Isolator lead
Red
House
battery
Battery cable
Isolator lead
Battery cable
Isolator lead