Dual Battery Selector Switch

wajajaja02

Senior Chief Petty Officer
Joined
Apr 21, 2008
Messages
667
Re: Dual Battery Selector Switch

stator,generator, or alternator, no difference, positive on battery 1 to a position and battery 2 to to b position and the common to the starter. the negative or black wire does NOT connect to the switch at all/.
 

DTL504

Seaman Apprentice
Joined
Feb 21, 2008
Messages
44
Re: Dual Battery Selector Switch

1. I am running 1 Stator, 2 batteries, 1 switch.

2. Connection on the Attwood Battery Switch are: Batt#1, Batt#2, Feeder, and 2 Field Circuit terminals.
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
28,073
Re: Dual Battery Selector Switch

That Battery switch is specialized for use by Inboards or sterndrive engines. They expect you to connect the voltage regulator wires to it to protect from burning out the diodes. That is not practical on an outboard.

You may use the switch for your outboard. Connect the red positive wire from the motor to the common terminal. Connect the batt 1 and batt2 terminals to the positive pole of each battery. Connect the negative pole of the batteries together, and to the motor's negative battry cable. You may now set the motor to start and charge from either battery or both.

if the switch is a "make before break" type, you may safely switch the position of the battery selector when the motor is running. If not, it might damage the VR or rectifier..
 
Joined
Feb 28, 2007
Messages
12
Re: Dual Battery Selector Switch

Just remeber one thing, never I mean never switch the engine off with the battery switch by itself. I did in a panic situation and had to replace many parts.
 

DTL504

Seaman Apprentice
Joined
Feb 21, 2008
Messages
44
Re: Dual Battery Selector Switch

You may use the switch for your outboard. Connect the red positive wire from the motor to the common terminal.

I take it this is the Feeder Terminal on the switch?
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
28,073
Re: Dual Battery Selector Switch

Feeder is a funny term for the common pole, but it appears to be the correct place.
 
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