House battery question - SailNet Community
LinkBack Thread Tools
post #1 of 4 Old 08-12-2011 Thread Starter
Junior Member
saillavie38's Avatar
Join Date: Dec 2004
Posts: 11
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
House battery question

It's time to replace the house battery on the Sail-La-Vie... the current setup is an 8D gel cell that has lasted over 10 years. I've been thinking about replacing that 160 pound beast with 3 x group 24 batteries in parallel at about 50 pounds each. A bit more manageable from an installation perspective, but still providing about the same amp hour rating.

Are there any pro/cons going with 3 smaller batteries vs one larger one? Are the larger batteries are constructed differently? Isn't there an advantage to multiple batteries vs one single point of failure?

saillavie38 is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
post #2 of 4 Old 08-12-2011
Senior Member
celenoglu's Avatar
Join Date: Dec 2008
Posts: 737
Thanks: 0
Thanked 18 Times in 17 Posts
Rep Power: 9
The battery technology does not differ for a single or parallel 3 batteries. The porblem is there is a slim opportunity to find a failing one. If onefails andyoucan pinpoint it in the beginning you can easilychange it.

But in practice it is not possible to find the failure before the others get defective as well. It will be always a good idea to change all three, because if one faails, it is more likely the otherswill fail due to the defective one.

Another alternative is to use three batteries separately. You can swith to the second or third battery if the first is discharged.
celenoglu is offline  
Quote Quick Reply Share with Facebook
post #3 of 4 Old 08-12-2011
epaolino's Avatar
Join Date: Jun 2004
Posts: 29
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
I had a friend change to 6 volt golf car batteries from 4d's. In this configuration he had more amp hrs and lighter batteries when time to swap out or do matainence. And the 6v batts were cheaper.
epaolino is offline  
Quote Quick Reply Share with Facebook
post #4 of 4 Old 08-12-2011
Senior Member
mitiempo's Avatar
Join Date: Sep 2008
Location: Victoria B.C. Canada
Posts: 7,799
Thanks: 0
Thanked 111 Times in 102 Posts
Rep Power: 10
6 volt golf carts will last longer due to thicker plates, handle more cycles than any 12 volt, and are easier to handle. I have installed many dozens of golf carts and only one 4d in the last year. More amp hours as well and less expensive.

This link has information you should read.

Living aboard in Victoria Harbour
mitiempo is offline  
Quote Quick Reply Share with Facebook

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
Should I be concerned about the house battery LakePirate Gear & Maintenance 12 10-14-2010 08:50 AM
Best House Battery bob1956 Gear & Maintenance 3 04-19-2007 11:24 PM
Starting Battery vs. House Battery GarrettK Gear & Maintenance 18 10-26-2004 10:58 AM
Starter or House Battery? rrobar Gear & Maintenance 2 12-30-2003 03:56 PM
House battery capacity wwilson Gear & Maintenance 7 03-07-2001 08:06 PM

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