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Old 03-08-2006, 02:37 AM
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prostar205 prostar205 is offline
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Dual Battery Wiring Help?????

I would really appreciate it if someone with more knowkedge than me in the area of wiring a dual battery setup would take alook at a quick block diagram I made of my installation.

Batter Position 1 is the engine starting battery. It will also provide the power for the gauges, bilge pumps, ballast pumps, computer, fuel pump, etc.... Battery Position 2 will have 2 Blue Top Optima D34Ms wired in parallel. They will be hooked up only to the stereo. I also want to wire in a battery isolator and battery switch.

All the wiring for both batteries will be 0 AWG power and ground wires.

Thank you in advance for helping me out.
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Old 03-08-2006, 08:05 AM
Dean Witmer Dean Witmer is offline
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If you have a West Marine catalog they have a very clear diagram and directions on how to install a dual battery system.
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Old 03-08-2006, 08:24 AM
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Quote:
Originally Posted by Dean Witmer
If you have a West Marine catalog they have a very clear diagram and directions on how to install a dual battery system.
I think this link will get you to that page.
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Old 03-08-2006, 09:32 AM
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I think you want the alternator connected to the battery switch and not the isolator. I'm using a combiner in my setup (http://www.yandina.com/c100Info.htm), which may be different than an isolator.

I've attached my diagram, hope it helps.
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Old 03-08-2006, 11:51 AM
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prostar205 prostar205 is offline
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Ski King -

Thanks for the link. It took me to the West Marine catalog page for battery switches. There is some verbage regarding dual battery setups but I have not read it yet. I was really looking for a block diagram showing a dual battery setup with an isolator and battery switch. I have not found that yet in the WM catalog. I think I will walk to my local WM store at lunch and ask them. They are only 3 blocks away.

I know the old (10 years ago) West Marine catalog had a block diagram showing all the wiring hookups for this type of setup.
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Old 03-09-2006, 12:24 AM
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prostar205 prostar205 is offline
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Does anyone else have any comments regarding the correct wiring for a dual battery setup with an isolator and battery switch. I know there are alot of people on here that have fairly large stereos. I would assume most people are running this setup.

I really want to hear your comments.

Thanks,
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Old 03-09-2006, 12:37 AM
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DrNautica DrNautica is offline
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Try the catalog link thingy and page back about 8 pages or so for your diagram.
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Old 03-09-2006, 12:41 AM
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Google dual battery diagram


http://www.hellroaring.com/simple.htm
http://www.pirate4x4.com/tech/billav...tery_setup.htm

I think your diagram is ok, but you will have to remember to switch back and forth to keep batteries charged.

Last edited by Leroy; 03-09-2006 at 12:44 AM.
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Old 03-09-2006, 12:02 PM
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I am also thinking of adding another Battery. Does anyone have a list of parts I will need to buy to do this. Any good recommendations on where to buy this stuff?
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Old 03-09-2006, 05:51 PM
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Good thread.............

http://www.tmcowners.com/teamtalk/sh...light=official
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