Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 18-07-2012, 01:14   #1
Registered User

Join Date: Jul 2012
Location: Annapolis, MD
Boat: Jeanneau, Sun Odyssey 40.3
Posts: 5
Need Help

New to sailing looking for some help.

Scenario: I have three batteries (parallel connection) for the "house" connected to an inverter/charge. I also have a battery connected to another charger for the "motor/cranking". Looking for the best way to connect the batteries to the alternator for charging while motoring.
__________________

__________________
Gallowayx5 is offline   Reply With Quote
Old 18-07-2012, 03:57   #2
Moderator
 
Pete7's Avatar

Cruisers Forum Supporter

Join Date: Aug 2009
Location: Solent, England
Boat: Moody 31
Posts: 8,561
Images: 14
Re: Need Help

Something like a VSR would do nicely. We have one that connects when the engine is running (over 13.7v) and cuts out (below 12.8v) when the engine stops. There is a slight delay in the VSR cutting out as the batteries hold a surface charge and the voltage up for a little while but that is fine.

This link is for a UK manufacturer but there will be the equivalent near you.

Battery Management

A VSR can also be combined with battery switches in a neat module if you need it which is what we did when the rotary 1/2/off switch failed though age.

Power Store&

Pete
__________________

__________________
Moody 31 - April Lass
Pete7 is offline   Reply With Quote
Old 18-07-2012, 04:50   #3
Moderator Emeritus
 
GordMay's Avatar

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 31,583
Images: 240
Re: Need Help

Greetings and welcome aboard the CF, Gallowayx5.

Xantrex Echo~Charge ➥ http://www.xantrex.com/power-product...y-charger.aspx

Battery Isolators ➥ http://www.colehersee.com/home/grid/cat/211/
__________________
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"



GordMay is offline   Reply With Quote
Old 18-07-2012, 09:32   #4
Registered User
 
Stu Jackson's Avatar

Join Date: Jan 2011
Location: Cowichan Bay, BC (Maple Bay Marina)
Posts: 6,388
Re: Need Help

Since the alternator is a single output, the challenge is to find a way to charge the reserve (or start) bank. The easiest way is to do two things: remove the alternator output (AO) from the switch and connect it to the house bank, then get an echo charger to top off your reserve bank.

Like this:

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
__________________
Stu Jackson
Catalina 34 #224 (1986) C34IA Secretary
Cowichan Bay, BC, (Maple Bay Marina) SR/FK, M25, Rocna 10 (22#) (NZ model)
Stu Jackson is offline   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not 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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 11:52.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.