Battery Switch Setup - SailNet Community
LinkBack Thread Tools
post #1 of 3 Old 03-13-2013 Thread Starter
Junior Member
Join Date: Dec 2011
Location: Rhode Island
Posts: 21
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
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 ?

Attached Thumbnails
santana30RI is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
post #2 of 3 Old 03-13-2013
Senior Member
Stu Jackson's Avatar
Join Date: Jul 2001
Posts: 1,163
Thanks: 0
Thanked 30 Times in 29 Posts
Rep Power: 16
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 -

Stu Jackson, Catalina 34, 1986, M25 engine, Rocna 10 (22#), Maple Bay, BC, Canada
Stu Jackson is offline  
Quote Quick Reply Share with Facebook
post #3 of 3 Old 03-14-2013
Learning the HARD way...
eherlihy's Avatar
Join Date: Jan 2007
Location: Boston / Ft Myers Area
Posts: 5,411
Thanks: 281
Thanked 191 Times in 187 Posts
Rep Power: 11
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;
or this;

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

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

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Last edited by eherlihy; 03-14-2013 at 10:30 AM.
eherlihy is offline  
Quote Quick Reply Share with Facebook

battery switch , electrical

Quick Reply

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Forum Replies Last Post
Battery Charger and Battery Switch lobosolo98 Electrical Systems 11 10-10-2012 10:34 AM
New Battery Setup arf145 Electrical Systems 27 11-30-2009 01:15 PM
Starting Battery Setup. 1970Columbia34 Gear & Maintenance 19 02-24-2009 08:33 PM
Battery Setup: Blue Sea ACR? SEMIJim Gear & Maintenance 25 09-10-2008 10:49 AM
dual battery setup. dorourke Gear & Maintenance 16 06-07-2007 01:03 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome