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post #1 of 3 Old 03-13-2013 Thread Starter
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Battery Switch Setup

HELP not sure if this would work but worth a short. I have two batterys and adding a interveter to my boat but i would like it on a switch and not one that dc panel switch. by my drawing would this work with diodes and two battery switches ?

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post #2 of 3 Old 03-13-2013
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Re: Battery Switch Setup

No, you should have the inverter fed from the house bank. Diodes cause voltage drop and are way old technology.

For other wiring see these:

Basic Battery Wiring Diagrams This is a very good basic primer for boat system wiring: Basic Battery Wiring Diagrams

This is another very good basic primer for boat system wiring: The 1-2-B Switch by Maine Sail (brings together a lot of what this subject is all about)
1/BOTH/2/OFF Switches Thoughts & Musings - SailboatOwners.com

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post #3 of 3 Old 03-14-2013
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Re: Battery Switch Setup

The diodes, and the second switch, have me scratching my head... What are you trying to do? Why do you have DC running to an AC panel?

Assuming that you have a 1-both-2-off switch, you should only need one switch.

Many marine inverters, are actually Inverter/Chargers, and would come with more complete instructions than you will get here. Here is an example;


However, if you are hard-wiring an inverter, it should normally be connected to a breaker on the DC panel, labeled "inverter." The DC breaker panel would be energized when you select power from the 1-both-2 switch. You must have some form of circuit overload protection for the inverter circuit.

You may want to learn more about them by reading this; http://www.defender.com/html/charger...ters_info.html
or this; http://www.westmarine.com/webapp/wcs...ng-an-Inverter


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USCG Licensed OUPV Captain, ASA 101/103/104/105/106/118 Certified Instructor - Also certified in Recreational Marine Electrical Systems

Last edited by eherlihy; 03-14-2013 at 10:30 AM.
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