4-Wire boat Wiring Devices
The Marinco system provides a convenient way of connecting a
trolling motor or a battery charger to your boat’s batteries.
The Marinco 4-wire 12V battery charger plug (red) is used to
charge two (2) 12V batteries from a single 12V-battery charger.
It can also be used to connect a 12V motor to two (2) 12V
batteries. It can also be used to connect a 24V only motor. Both
of these plugs are used with the 4-wire receptacle.
Electrical wire has resistance. The smaller the wire, the more
resistance there is. That is why trolling motor manufacturer’s
recommend 6 AWG wire between the trolling motor and the
batteries. A 6 AWG wire has about one-fourth the resistance of
the commonly used 12 AWG wire. Also, wires should be kept as
short as possible to keep resistance to a minimum. The Marinco
line of plugs and receptacles are engineered specifically for
marine use. All the electrical contacts, blades and terminals are
nickel plated copper alloy for maximum conductivity and
corrosion protection.
Connecting Troll Harness to Battery
All Warrior Eagle and Falcon models have two troll motor
harnesses, each containing 4 wires. One harness comes from the
Power Charge Panel, the other from the Bow Panel. The solid
red and black wires go to battery #1. The red and black wires
with the blue tracer strips go to battery #2. This 4-wire system
does not require an external jumper wire for 24 volt. The 24 volt
jumper is contained in the 12/24 Marinco plug (red).
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