Battery Location ....

Aug 16, 2011
35
Considering moving my batteries out of the bilge pocket ... and up into dedicated storage boxes in the Port and Starboard cockpit lockers (base boards are strengthened). Wanted to get them ... and the cables out of the bilge area. Any options - other considerations - similar set-ups?
Thanks,
Tom
V1690
 
May 9, 2011
1,000
We fitted 2x 120 agm batteries under the vee berth in front of the water
tank. These are the house batteries. The engine battery is in the original
location. Needed to run some heavier cables but otherwise happy with that
position.
 
Oct 30, 2019
574
Hi Tom - We moved ours a few years ago to the space just aft of the aft bulkhead under the starboard seat. I added a platform for both batteries and set the batteries on that in boxes with straps to hold everything in place. Our fuel tank is in the opposite locker. It has worked well, no problems that I can remember. We also installed a new prosine charger/inverter at the same time. All electrical seems to be working as advertised.

Jack
Bella - V2620
 
Oct 19, 2019
921
Albin Vega 27 Limerick
Just out of curiosity, why move the batteries?
Are you concerned about them shorting out if bilge is flooded?

John V1447 Breakaway

John Kinsella
Mathematics and Statistics Dept
University of Limerick

Phone 0035361202148
Web jkcray.maths.ul.ie
 
Aug 16, 2011
35
John ...
I haven't found a good way to secure them ... and was hoping to make the cable runs shorter as well as get the cable & connections up and out of the lower area of the boat. Perhaps it was just old (or poor) cables ... but I found a good deal of internal corrosion on the cables. Of course - I've been rebuilding/redoing alot that didn't get taken care of with the boat sitting idle for 15yrs before I acquired it ... so perhaps that had something to do with it!!
Regards,
Tom
V1690
 
Oct 31, 2019
303
I have to agree with that question. Why move one of the heaviest components
on the boat to a higher position? If you use AGM batteries they won't short
or be damaged even if submerged in water. And if you get that much water in
the boat to cover the batteries in the bilge, well you have bigger problems
than your batteries anyway.

I actually put three batteries in my bilge by extending the shelf. They are
the same group 24 batteries that fit in the compartment.

I've been looking at the new technology batteries, but my battery guy says
to wait as there are still some problems to be overcome and the new
batteries are really pricey. I was able to buy factory second Optima
batteries at an excellent price and they are great.
 
Aug 16, 2011
35
Thanks! That's two votes for alternatives & two admonitions for never taking the batteries out of the lower section! Had thought of seperate house batteries as well!
Regards,
Tom
V1690
 
May 9, 2011
1,000
Lol reminds me of my PVC fuel tank debate.

Here's a couple of further observations on the matter of battery
replacement. On my boat the batteries where originally located in the port
locker which I guess counteracted the outboard located on the starboard
side of the transom. After travelling half way around the world (previous
owner), the following problems mounting them there were apparent:

- The plywood floor that the batteries sat on continually pushes against
the bulkhead dividing the locker from the engine compartment, causing it to
start separating. This could only be fixed by glassing a support to the
inside of the hull in which to attach the plywood floor.
- Either by water entry or the placing of wet items on top of the
battery boxes (which to me is justification enough not to place them in the
locker) corrosion of the leads and terminals becomes an issue

On the issue of keeping the batteries low, I actually have a former boat
builder acquaintance that I was talking to about the location of additional
batteries and they made what I though was a valid point on the subject of
keeping weight as low as possible in the boat. They said something like
that if too much weight is below the waterline, the righting moment becomes
too great and righting action can become too fast making the boat
uncomfortable. Food for thought I guess.
 
Jul 24, 2002
149
Just keep in mind that after more than 20000 posts (!!), nearly all of these topics have already been (exhaustively) discussed in the past - you might have to go to the Yahoo website for the group and do a search on keywords to find those posts, but it might help with your specific question. (Not that I want to discourage people to post questions that have been discussed before, but it can only help to have the combined wisdom of ALL - even former - members of the group at your disposal... ;-)

- Sebastian V1060 VegaLyra
 
Oct 30, 2011
221
Agreed, but trying to find specific information can be tricky and very
time consuming! Many other forums have more sophisticated search
facilities and they are categorised like the other Albin Vega forum - Login Required | Albin Vega Forum
- it is a pity we cannot merge the two! I find the google forums
difficult to search properly.
 
Feb 13, 2010
528
My Batteries ae in the starboard cockpit locker and my fuel tank to
port. The previous owner put them there. I would have kept two of them
and the fuel in the bilge. (Heavy things low) If I intend to race any
at all I would definitely keep them in the builge. I have heard some
concern that the bilge might fill with water. That can easily be solved
by putting Gel cell batteries down there. They can be completely
submerged without harm. The battery charge may be slowly drained off
through saltwater. For that possibility I would keep my starting battery
up high. A fairly small lower amp hour battery would do for that but
would have to be gel cell as well because you can't mix Gel and lead
acid batteries. I will likely make this change at some point. My
thinking is with fuel and batteries there is likely 200 pounds of weight
as ballast and to move it above the water line it becomes 200 pounds of
instability. Add the two together you get 400 lbs of total instability
before you ever put all the food water and other unstable supplies and
people. Doug
 
Oct 31, 2019
303
Rather than Gel batteries go to AGM (absorbed glass mat). They are a sealed
battery that can be mounted on the side or even upside down (I wouldn't
recommend that however :) They don't leak and can take a good drowning.
The biggest advantage is that they can be charged at the same rate as a
flooded battery and are far more robust than the older Gel technology. The
AGM was originally invented for the F18 jet fighter.