House Battery Selection - SailNet Community
Reply
 
LinkBack Thread Tools
post #1 of 23 Old 06-20-2007 Thread Starter
Junior Member
 
Join Date: Jul 2006
Location: Coast of Maine
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
House Battery Selection

If I have overlooked an article, or other thread that has previously covered my question, please point me in the right direction.

I need a bit of assistance and advice in the selection of a house battery and charging system for my 22' sailboat. We plan on using the boat most weekends, and an occasional week-trip. We located on the coast of Maine, and don't plan on straying too far from home.

As for equipment, we have all the necessary running lights, cabin light, VHF, depth, chart-plotter, and probably not much more. (the outboard is started by hand) Solar charging is probably the only charging source we'll have available.

I know that the best bang for my buck would be a couple of 6v flooded batts, such as the T105, but I'm not too comfortable sleeping on top of them. I do want to keep cost and expense to a minimum, but also know that I must purchase the proper equipment.

Would anyone like to give some advice as to battery type, capacity, and charging (which brands and styles of smaller solar panels work best)??

Thanks...
ISLANDAH is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 23 Old 06-20-2007
Senior Member
 
Join Date: Aug 2006
Location: Arlington, VA
Posts: 1,854
Thanks: 0
Thanked 11 Times in 9 Posts
Rep Power: 11
   
No problem "sleeping on top of them". They won't bite, and while you're sleeping at night there's unlikely to be a charge on them from the solar panel(s)...unless the full moon is a heck of a lot brighter in Maine than I remember :-)

With your minimal needs, just about any deep cycle battery will do. Find one which will fit into the available space, preferably with at least 100AH capacity.

Charging is going to be the problem. You've got lots of foggy days up there, and even sunny days aren't too long or bright. Unless you have the ability to charge at dockside, you're going to need a healthy-sized solar panel to keep the battery charged. I'm no expert on solar panels, particularly their use in Maine waters; maybe someone else could comment.

Another possibility for charging is a small generator....the Honda 1000EU or even a smaller one.

Nothing kills batteries faster than chronic undercharging, so be sure you have a way...however...to keep your batteries (i.e., your investment) charged.

Bill
btrayfors is offline  
Quote Quick Reply Share with Facebook
post #3 of 23 Old 06-20-2007
Best Looking MALE Mod
 
Cruisingdad's Avatar
 
Join Date: Jul 2006
Location: Washington State
Posts: 9,917
Thanks: 3
Thanked 124 Times in 57 Posts
Rep Power: 10
     
Bill,

I have always been under the impression that "sleeping" over a wet cell was a bad idea. I have always been instructed that wets (though the argument could be made for any battery) need their own compartment, with no electrical connections inside the compartment, either vented to the outside or where the gas can freely escape.

Now, I agree that if they are not being charged they are likely not gassing, and would have no effect, but what if you were running that genny at night, or the engine at night?

I am not contradicting you, I am asking if I am wrong. DO others, Hello for instance, have thoughts on this?

- CD

Sailnet Moderator



1987 Tayana Vancouver 42, Credendo Vides, (Mom and Pops boat, F/T Mobile Live Aboards in Puget Sound)

My Website:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Follow My Blog at:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Follow me on Facebook:

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Cruisingdad is offline  
Quote Quick Reply Share with Facebook
post #4 of 23 Old 06-20-2007
Reward for lost Kraken!
 
hellosailor's Avatar
 
Join Date: Apr 2006
Posts: 11,556
Thanks: 6
Thanked 137 Times in 134 Posts
Rep Power: 11
   
CD-
Assuming that the wet cells are properly ventilated, so you can't breath acid vapors while awake or asleep, I still think sleeping on them is a bad idea. Sleeping UNDER them would provide way more protection from cosmic rays, tortoises dropped by passing eagles (that's what killed Aeschulus, wasn't it?) and other hazards.

< G >
hellosailor is offline  
Quote Quick Reply Share with Facebook
post #5 of 23 Old 06-20-2007
Best Looking MALE Mod
 
Cruisingdad's Avatar
 
Join Date: Jul 2006
Location: Washington State
Posts: 9,917
Thanks: 3
Thanked 124 Times in 57 Posts
Rep Power: 10
     
Well, what if you were sleeping under them and they poped? (smile)

I do not remember the specifics on ABYC. I would have to look that up.

Still, another reason to go with AGM's.

Sailnet Moderator



1987 Tayana Vancouver 42, Credendo Vides, (Mom and Pops boat, F/T Mobile Live Aboards in Puget Sound)

My Website:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Follow My Blog at:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Follow me on Facebook:

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Cruisingdad is offline  
Quote Quick Reply Share with Facebook
post #6 of 23 Old 06-20-2007
Senior Member
 
Join Date: Aug 2006
Location: Arlington, VA
Posts: 1,854
Thanks: 0
Thanked 11 Times in 9 Posts
Rep Power: 11
   
My comments were directed toward the original question, which came from a guy with a 22' sailboat and whose outboard, apparently, is not to be used as a source of charging. He stated that solar panels were the only source of charging. So, sleeping over flooded cells most assuredly wouldn't be a problem.

I don't think it would be a problem for most folks, either. I have four T-105s under my aft cabin berth, and two under my V-berth. Been there for many years. No problems. Many boats have batteries under their berths. And holding tanks, which are much worse, IMO :-)

Battery compartments should be well vented, of course, but flooded batteries generally don't emit a lot of toxic fumes unless they're heavily discharged and being heavily charged. Or equalized. So long as the battery compartments are vented, and the cabins are well ventilated, I don't think there's any cause for concern.

Of much greater concern is carbon monoxide emitted from running machinery. That's why I never run a generator while sleeping -- diesel or not -- and keep cabins well ventilated if the main engine is running.

Bill

Last edited by btrayfors; 06-20-2007 at 05:03 PM.
btrayfors is offline  
Quote Quick Reply Share with Facebook
post #7 of 23 Old 06-20-2007
Telstar 28
 
sailingdog's Avatar
 
Join Date: Mar 2006
Location: New England
Posts: 43,290
Thanks: 0
Thanked 15 Times in 12 Posts
Rep Power: 14
         
The major risk of nasty toxic fumes from wet cell batteries is if they are exposed to seawater—chlorine gas will form IIRC. Other than that, they're not that bad. Hydrogen is so much lighter than air and very good at escaping... unless you've intentionally not vented the battery compartments, it is very unlikely to trap enough hydrogen for any serious explosion risk.

Sailingdog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
sailingdog is offline  
Quote Quick Reply Share with Facebook
post #8 of 23 Old 06-20-2007
Best Looking MALE Mod
 
Cruisingdad's Avatar
 
Join Date: Jul 2006
Location: Washington State
Posts: 9,917
Thanks: 3
Thanked 124 Times in 57 Posts
Rep Power: 10
     
Hi Bill,

Thanks for the reply.

I have always been under the impression otherwise. The truth is that it probably would not make a difference, in all reality. However, assuming you could find or make another spot for the, would you not agree it would be worth the trouble? I know you are responding to this thread... I am asking your opinion on more of a general question.

Thoughts?

- CD

Sailnet Moderator



1987 Tayana Vancouver 42, Credendo Vides, (Mom and Pops boat, F/T Mobile Live Aboards in Puget Sound)

My Website:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Follow My Blog at:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Follow me on Facebook:

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Cruisingdad is offline  
Quote Quick Reply Share with Facebook
post #9 of 23 Old 06-20-2007
Best Looking MALE Mod
 
Cruisingdad's Avatar
 
Join Date: Jul 2006
Location: Washington State
Posts: 9,917
Thanks: 3
Thanked 124 Times in 57 Posts
Rep Power: 10
     
Sea water and a salt water boat are real possibilities. ALso, depending on the confinement, it is in theory possible that enough fumes could not escape to build up in the area below. What if the person were smoking?

Again, these are theoretical questions, for the most part. I am not asking what is probably ok, I am asking what is RIGHT way... AND I SURE AM NOT QUESTIONING BILL (though I might dissagree a bit, smile).

- CD

PS Next we will start up on a dynapate and lightning bill... smile!!

Sailnet Moderator



1987 Tayana Vancouver 42, Credendo Vides, (Mom and Pops boat, F/T Mobile Live Aboards in Puget Sound)

My Website:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Follow My Blog at:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Follow me on Facebook:

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Cruisingdad is offline  
Quote Quick Reply Share with Facebook
post #10 of 23 Old 06-20-2007
moderate?
 
camaraderie's Avatar
 
Join Date: May 2002
Location: East Coast
Posts: 13,877
Thanks: 0
Thanked 3 Times in 3 Posts
Rep Power: 16
     
I'm with Bill on this one...have slept on 2 8D's at both ends of the boat for years (before converting to AGM's)...I don't think there is any reason to find another spot. Just ventilate when you are doing an EQ charge.
camaraderie is offline  
Quote Quick Reply Share with Facebook
Reply

Quick Reply
Message:
Options

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:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









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
Battery Bank Design Kevin Jeffrey Gear and Maintenance Articles 0 05-12-2003 08:00 PM
Battery Bank Design Kevin Jeffrey Cruising Articles 0 05-12-2003 08:00 PM
Choosing Batteries Kevin Jeffrey Gear and Maintenance Articles 0 04-07-2003 08:00 PM
Installing a New Battery Bank Sue & Larry Gear and Maintenance Articles 0 09-26-2002 08:00 PM
Boat Battery Power East Penn Manufr. Gear and Maintenance Articles 0 01-18-1999 07:00 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