mount battery in bilge floor? - Page 2 - SailNet Community
LinkBack Thread Tools
post #11 of 14 Old 10-18-2013
Over Hill Sailing Club
smurphny's Avatar
Join Date: Feb 2009
Location: Adirondacks NY
Posts: 3,663
Thanks: 93
Thanked 111 Times in 108 Posts
Rep Power: 9
Re: mount battery in bilge floor?

Ditto. Build a good sturdy box with 2" high sides that fit right around the battery(ies)from plywood and completely glass it with heavy tabbing up onto the inside of the hull. Batteries are heavy so when heeling over and getting bounced around, they need to stay put. You can fit a 1/8" x 2" padded s.s. strap to hold them down much the same as a typical car battery is held down.

Alberg 35: With a philosophical flourish Cato throws himself upon his sword; I quietly take to the ship.
smurphny is offline  
Quote Quick Reply Share with Facebook
The Following User Says Thank You to smurphny For This Useful Post:
wrapper (06-21-2016)
Sponsored Links
post #12 of 14 Old 01-05-2014
Senior Member
Join Date: Jan 2013
Location: Montreal, QC, Canada
Posts: 363
Thanks: 0
Thanked 14 Times in 13 Posts
Rep Power: 5
Re: mount battery in bilge floor?

What are the Marine requirements? In a newly freed up area, I have to put four large 12 vdc lead/acid batteries. Would using 4 "tie downs" only, be acceptable? Or do the tie downs (rectangular collar) have to be in a closed boxes?
sony2000 is offline  
Quote Quick Reply Share with Facebook
post #13 of 14 Old 01-05-2014
Join Date: Apr 2006
Posts: 12,305
Thanks: 6
Thanked 176 Times in 173 Posts
Rep Power: 12
Re: mount battery in bilge floor?

Glue won't stick to a battery box, but that's why boxes are usually strapped down. You can generously glue down some battens, and then strap or bolt (or both) the plastic box down to them. You want whatever job you do to be strong enough, and rigid enough, so that you literally can roll the boat over without the battery shifting.

The bigger issue may come back to "what kind of battery do you have". The criteria here is "wet lead acid" or "sealed" because when salt water gets into the bilge, if it gets into a plain wet lead acid battery it will combine with the electrolyte and give off large amounts of chlorine gas. Which is very good at burning out eyes, throats, and lungs in very short order.

So personally? I wouldn't put an unsealed battery in a bilge space, at all.
L124C likes this.
hellosailor is offline  
Quote Quick Reply Share with Facebook
post #14 of 14 Old 01-05-2014
Senior Member
mitiempo's Avatar
Join Date: Sep 2008
Location: Victoria B.C. Canada
Posts: 7,796
Thanks: 0
Thanked 111 Times in 102 Posts
Rep Power: 10
Re: mount battery in bilge floor?

They should be installed in such a way that they cannot move in any direction - ABYC allows 1" movement but no movement is better. They should be either in acid proof boxes or at the very least in acid proof trays. If the compartment is closeable lids aren't required, but the posts should be covered.

I agree the bilge in most boats is not a good place for flooded batteries.
L124C likes this.

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
Radar - Stern Mount or Mast Mount night0wl Gear & Maintenance 34 03-19-2009 07:00 PM
All of a sudden - A Bilge Smell, and Battery Issue labatt Gear & Maintenance 19 10-09-2008 10:04 AM
Need material to raise floor of bilge slightly saltypat Gear & Maintenance 5 09-20-2007 07:30 PM
Bilge Pump Failed, 6" Water over floor, what now? psolson Gear & Maintenance 33 09-07-2006 04:26 PM
Using "Starboard" for bilge pump mount? mikeedmo Gear & Maintenance 11 06-13-2006 06:43 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