battery placement

[steplift20]

Personally I would keep them in the stern Their there already

[randlemanboater]

You may want to test how your boat floats with the batteries moved, I know I used to keep a spare battery in the floor compartment in the cabin sometimes and when I would put a fair amount of gear in there (like when we went to the Keys and I left it in the water for a week) the cockpit floor was sloped forward...no drainage when it rains.

[Slightly_Twisted]

Well holes were drilled and it looked ok...so I said go for it.

Cut a 12x7.5 inch hole in the area just forward of the cuddy bulkhead and
Bingo there is a perfect cavity for one battery maybe two if you wanted them on the same side. I’m going to cut the other side tomorrow and take some photos.

[BillTex]

Originally Posted by Slightly_Twisted

Well holes were drilled and it looked ok...so I said go for it.

Cut a 12x7.5 inch hole in the area just forward of the cuddy bulkhead and
Bingo there is a perfect cavity for one battery maybe two if you wanted them on the same side. I’m going to cut the other side tomorrow and take some photos.

Weight forward will have a greater effect on attitude than weight in stern.
Measure 2x...cut 1x.

[Destroyer]

Truthfully, I still don't like the idea of putting batteries in the cuddy on the hull. That area takes the most pounding from a wave. It lifts up the highest and drops the furthest.... add something heavy on the inside of the hull in that area and you are asking for a cracked hull IMHO.

Remember that the hull is designed and braced to take an incoming soft (water) shock against it, not outgoing hard (solid) heavy weight shocks.

Physics tells us that a free falling object accelerates at 9.81 meters per second per second. (9.81m/s^2) So a 25 lb battery (11.33 KG) falling 2 feet (.6096m)
[Think of a 2 ft high chop] has the impact force of roughly 67.69 Joules or 49.93 Ft. Lbs. Put two batteries together and you have the equivalent of roughly 100 ft. lbs pounding on your hull in a 2 foot drop. More as the wave height height increases. And every wave causes that pounding.

The furthest I've gone forward is the area between the captains and the mates seats, and even then I tried to insulate the batteries from the hull itself with several inches of wood over foam that the batteries sit on. Just my two cents.

[Slightly_Twisted]

Not Sure if this will work trying to post from my phone.

[bradford]

Cool, always wondered how deep it went there, even if it wasnt used for batteries nice to know you could put some hatches there.

[jvitiel]

Originally Posted by Slightly_Twisted

Well holes were drilled and it looked ok...so I said go for it.

Cut a 12x7.5 inch hole in the area just forward of the cuddy bulkhead and
Bingo there is a perfect cavity for one battery maybe two if you wanted them on the same side. I’m going to cut the other side tomorrow and take some photos.

Awesome! Good to know!

[BillTex]

Let’s take a step back; what is the motivation for moving the batteries away from the stern anyway?

Maybe I’m missing something...but I just don’t see a good reason.

Unless you have hung an over weight engine on the stern why do you want to do this?

Thx, B

[Slightly_Twisted]

In about a year ish when I repower. I’m going to hang a 36 in set back bracket with a swimming platform and a 200 hp off the transom. I need to rewire the boat now to get a number of basic functions working. With the current under deck setup the only place for the batteries is the transom. With the planed extra weight in the stern I’m trying to offset it as much as possible. I’m doing it now one because I already have everything I need and two I don’t want to have to move the batteries latter rewiring the boat twice.