Notices
Marine Electronics Forum

Installing Batteries

Old 01-23-2007, 12:14 PM
  #1  
Junior Member
Thread Starter
 
Join Date: Aug 2005
Location:
Posts: 25
Likes: 0
Received 0 Likes on 0 Posts
Default Installing Batteries

I have a few questions regarding the install of two batteries on a mid sized CC boat. I own a 2004 17' Cape Horn and I am considering moving the battery location under the console. First off... Is this safe? My fuel tank is also located under the console along with my oil tank. There are plenty of wires under there currently for the fuse panel and various electronics, so I don't see a battery(same 12 V) being a problem.
Question 2- I have a 150 Carbed Yamaha which I believe has the isolated charging wire hook up. If I were to install two batteries, could I connect them with a 1,2,All, Off switch, and attach the fuse panel main wire to (#2) battery and use other (#1) as starting only. Then leave switch on #1 at all times, and allow the isolated cable to charge # 2?
I hope this makes sense and yes I did a search.
Old 01-23-2007, 02:28 PM
  #2  
Senior MemberCaptains Club MemberPLEDGER
 
Join Date: Feb 2005
Location: Kent Narrows, MD
Posts: 7,144
Received 774 Likes on 366 Posts
Default Re: Installing Batteries

If you install a sealed batteries like AGM's they will be fine in the console. If you have the aux charging lead, the way you have described is a good idea. If it doesn't have the aux lead, here is the way to go

http://www.thehulltruth.com/forums/t...114124&posts=4

Here is a good choice for the fuse panel (get rid of the glass fuses & inline fuse holders)

By Blue Sea Systems



Old 01-23-2007, 05:56 PM
  #3  
Junior Member
Thread Starter
 
Join Date: Aug 2005
Location:
Posts: 25
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Installing Batteries

Thank You for the response. What is the reason for the AGM Batteries. Thanks for the photo of the fuse panel. I have something similar now only with fewer circuits.
Also note that the tank is vented and grounded properly and has a fill hose connected to the exterior of the console.
Thanks
Old 01-23-2007, 06:57 PM
  #4  
Senior MemberCaptains Club Member
 
Join Date: Mar 2006
Location: Slidell, LA
Posts: 1,210
Received 22 Likes on 18 Posts
Default RE: Installing Batteries

The AGM's are sealed, so they won't vent hydrogen when charging. You don't want to accumulate any explosive gasses or fumes anywhere that you have any unsealed (or in the correct term - non-ignition protected) electrical components or other source of ignition.

If the fuel tank is properly installed, vented, etc, I don't think you've got a problem.

Bill
Old 01-23-2007, 07:06 PM
  #5  
Senior Member
 
Join Date: Jul 2004
Location: S Fla
Posts: 23,412
Likes: 0
Received 35 Likes on 29 Posts
Default x

x...
Old 01-23-2007, 07:25 PM
  #6  
Senior MemberCaptains Club MemberPLEDGER
 
Join Date: Dec 2004
Location: Not in Texas
Posts: 10,213
Likes: 0
Received 6 Likes on 4 Posts
Default Re: Installing Batteries

Elusive - 1/24/2007 11:28 AM

If you install a sealed batteries like AGM's they will be fine in the console. ...
Sorry, I’m not aware of any lead acid battery out there (AGMs are lead acid batts) that is not vented. In some of the AGMs the vents are small, gotta look hard to find them, but there are there.

Not venting a lead acid batt means in an over-voltage situation you are virtually guaranteed the batt will explode. I use the crème de la crème of AGM batts and they actually have a small nipples molded into the case so you can fit a pair of 1/4-in tubes to the battery to vent it outside of whatever compartment they are installed in. And no, nothing spills out of the vent holes. The batts are spill-proof, but vented nonetheless.

If you are going to put batts anywhere near where electronics or electrical components are exposed, build yourself a box with a tight fitting lid for the batts and run a vent tube to outside of your console, similar to how you fuel tank is vented. (Please tell me your fuel tank is vent to outside of where all of that electrical stuff is.)

Now having said that, I’m sure someone is now making a completely sealed lead acid batt … ;?

Old 01-23-2007, 10:36 PM
  #7  
Senior MemberCaptains Club Member
 
Join Date: Mar 2006
Location: Slidell, LA
Posts: 1,210
Received 22 Likes on 18 Posts
Default Re: Installing Batteries

Someone will (hopefully) come along who knows more than I do. I've been looking at new batteries, and have been doing some research.
As I understand them, AGM's are not the same as the wet, vented, lead acid batteries that have been around forever. They are a type of Sealed Lead Acid (SLA), or Valve Regulated Lead Acid (VRLA), battery. These terms are interchangeable, there are relief valves that are used to seal the batteries - under normal circumstances. You can overcharge them, and cause them to lift the RV(s?) and vent, but they are sufficiently sealed that they can be mounted on their sides or even upside down (although that is not recommended) without spilling, and compared to standard non-sealed batteries, they don't vent much at all. The venting of hydrogen (apparently other non-explosive gasses can be vented also) is sufficiently reduced that they can be safely installed in locations with spark-producing devices.
From Cabelas web site - and similar information is repeated at other manufacturers and non-manufacturers sites - "Since these batteries are sealed, they won't spill acid when tipped over or sloshed by heavy waves. Also, gels aren't subject to the danger of explosion that is possible under certain conditions with lead-acid batteries."

Educate yourself, and make your own decision. The truth is that I'm installing an inverter with a non-ignition-protected relay and have chosen to install it in a compartment separate from my batteries even though I plan to purchase AGM's.

Bill
Old 01-24-2007, 07:06 AM
  #8  
Junior Member
Thread Starter
 
Join Date: Aug 2005
Location:
Posts: 25
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Installing Batteries

Thank You all for your information. I guess I will do some more research before I jump, but the summer bug has already started in me and I want everything ship shape early.
Thanks Again
Old 01-24-2007, 09:48 AM
  #9  
Senior MemberCaptains Club MemberPLEDGER
 
Join Date: Jul 2004
Location:
Posts: 8,724
Received 491 Likes on 324 Posts
Default RE: Installing Batteries

A good read ........ sit down and get an adult beverage.

http://www.vonwentzel.net/Battery/01.Type/index.html
Old 01-24-2007, 11:09 AM
  #10  
Junior Member
Thread Starter
 
Join Date: Aug 2005
Location:
Posts: 25
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Installing Batteries

Thanks blue water, that is good information.
I contacted Cape Horn and they said that I should not have a problem mounting the batteries in the console.
Apparently others have created shelves to mount batteries above the tank and behind the tank.
All without any problems.
Research continues.
Old 01-24-2007, 11:25 AM
  #11  
Senior MemberCaptains Club MemberPLEDGER
 
Join Date: Dec 2004
Location: Not in Texas
Posts: 10,213
Likes: 0
Received 6 Likes on 4 Posts
Default Re: Installing Batteries

Bigger Hammer - 1/24/2007 7:36 PM

... The venting of hydrogen (apparently other non-explosive gasses can be vented also) is sufficiently reduced that they can be safely installed in locations with spark-producing devices.
Hydrogen is its own problem when electrical is around. I was referring to the sulfuric acid that rises on the venting gases that will be the biggest problem over time. It will eat anything metallic and/or wooden in the console.

I have never seen a recommendation or approval to mount any lead acid battery, sealed or not, in a living space because of the sulfuric acid.
Old 01-24-2007, 12:45 PM
  #12  
Junior Member
 
Join Date: Nov 2004
Location:
Posts: 29
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Installing Batteries

Those AGM batteries are completely sealed. You can install them bottom up if you want to.
I think Gel batteries work the same way. There aren't any gas to leak out from that kind of system. I guess it's the acid that generates the gas. If there isn't any acid - then no gas!
AGM batteries are OK to transport on airplanes since there is no risk for explosion!
They were built to put in airplanes and modern subs. Atleast what I've heard.

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 On
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright © 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.