Join Date: Apr 2006
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Proper wiring of outboard motor
I was hoping that someone could shed light on the proper wiring of an outboard equiped with an alternator in order to charge the battery when running.
7.5 Honda outboard
1 12v marine gell cell
1 TrueCharge 10amp battery charger
1 2-battery switch (OFF, ON 1 Battery, ON 2nd Battery, ON 2+1 Battery)
I bought the previously owned vessel just over a year ago and noticed the following characteristics:
1) When connected to shore power, with the battery switch in either the on or off position, the TrueCharge multi-stage battery charger operates as normal and charges the battery.
2) When under way with the motor running and the battery switch in the 'on' position, all electrical functions run directly off of the battery and the motor does not charge nor run any of the electrical devices.
3) When under way with the motor running and the battery switch in the 'OFF' position, the motor powers all devices at 14+v and it is unclear as to whether it charges the battery or not. When the motor is then turned off, I am forced to switch the battery switch back to the 'ON' position to run off battery so that I don't lose electricity to all of the components.
Is this normal? It seems very odd to me. My feelings are that I should have the battery switch to the 'ON' position at all times, motor running or not, and that when the motor is running it should charge the battery from the current off the alternator.
Thanks in advance,