Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 22-12-2008, 10:55   #1
Registered User

Join Date: Jan 2008
Posts: 3
High Amp Battery Connection Question

Hi everybody, my first post after a lot of reading.

I am installing 12 T105's as new house batteries in 4-series/3 parallel banks configuration for a 24 volt, 660 amp house bank. I would like to terminate the 3 banks at a single point (according to this website: SmartGauge Electronics - Interconnecting multiple batteries to form one larger bank) where also a 3500 watt inverter and the DC panel connection will be hooked up. Max. inverter DC load is about 150 amps, DC panel loads maybe 50 amps max.

My question is, do I need a 250 amp battery bar as by blue sea systems ($80 x 2 for + and - ) or could I just use a single SS bolt / stud each for +/- with all the lugs attached to it?

Wouldn't the stud actually be better (with copper washers in between perhaps) because the lugs have direct contact with each other as opposed to using a bar for conductivity (multiple contact points)?

Thank you for your advise,
David
__________________

__________________
davida1234 is offline   Reply With Quote
Old 22-12-2008, 11:23   #2
Senior Cruiser
 
delmarrey's Avatar

Cruisers Forum Supporter

Join Date: Mar 2003
Location: Now in Blaine, WA
Boat: Modified Choate 40
Posts: 10,702
Images: 122
Quote:
Originally Posted by davida1234 View Post
My question is, do I need a 250 amp battery bar as by blue sea systems ($80 x 2 for + and - ) or could I just use a single SS bolt / stud each for +/- with all the lugs attached to it?

Wouldn't the stud actually be better (with copper washers in between perhaps) because the lugs have direct contact with each other as opposed to using a bar for conductivity (multiple contact points)?
The reason for a bar is so if you want to add more accessories. But any kind of stud would work, preferably a brass stud to keep the metals in parallel.

With so many amps my question would be; are you installing a fuse link after the batteries +???
__________________

__________________
Faithful are the Wounds of a Friend, but the Kisses of the Enemy are Deceitful! ........
A nation of sheep breeds a government of wolves!

Unprepared boaters, end up as floatsum!.......
delmarrey is offline   Reply With Quote
Old 22-12-2008, 11:33   #3
Registered User

Join Date: Jan 2008
Posts: 3
Del, thanks for your help. Yes, I do have a HD BlueSeaSystems 300 Amp fuse with cover in line.
David
__________________
davida1234 is offline   Reply With Quote
Old 22-12-2008, 11:42   #4
Registered User

Join Date: May 2008
Location: Connecticut
Posts: 23
Send a message via Skype™ to JHJensen
Exclamation Number of conductors per stud.

Quote:
Originally Posted by davida1234 View Post
My question is, do I need a 250 amp battery bar as by blue sea systems ($80 x 2 for + and - ) or could I just use a single SS bolt / stud each for +/- with all the lugs attached to it?

Wouldn't the stud actually be better (with copper washers in between perhaps) because the lugs have direct contact with each other as opposed to using a bar for conductivity (multiple contact points)?

Thank you for your advise,
David
David I you don't want to have more than four lugs per stud peer AYBC Standards.
__________________
JHJensen is offline   Reply With Quote
Old 22-12-2008, 12:08   #5
Registered User

Join Date: Jan 2008
Posts: 3
Thanks Gamekeeper,

I could connect the DC panel wires to the posts at the inverter and avoid 5-lug stud situation.
David
__________________
davida1234 is offline   Reply With Quote
Old 22-12-2008, 16:36   #6
Senior Cruiser
 
DeepFrz's Avatar

Cruisers Forum Supporter

Join Date: Mar 2006
Location: Winnipeg
Boat: None at this time
Posts: 7,930
More good reasons to use the bus bars over the lugs are simplicity and ease of maintenance. The bus bars keep all the supply points in the same location.
__________________

__________________
The Blue Dot Campaign. This Changes Everything.
DeepFrz is offline   Reply With Quote
Reply

Tags
battery

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Marine Stereo & Ipod Connection By Invitation Fishing, Recreation & Fun 18 26-03-2009 14:40
Shor power connection question over40pirate Electrical: Batteries, Generators & Solar 18 25-07-2008 02:14
Epifanes High Gloss Varnish question By Invitation Construction, Maintenance & Refit 6 18-04-2008 13:12
Battery voltage too high???? rleslie Electrical: Batteries, Generators & Solar 3 16-11-2006 13:43
High air flow / low battery consumption? Doghouse General Sailing Forum 28 15-05-2006 13:33



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 03:00.


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.