2310 house battery relocation, 70lb AGM, reinforce hull?

[izzy003]

I have a AGM 24 as my starter and a AGM 31 as my house battery, both in port transom stock location. These batteries weigh a ton, 50lbs and 70lbs.

I want to relocate the house battery (31 series, 70lbs) to the bow. I added a 65gallon bait tank and the stern is sitting fairly low now all filled up.

I was thinking the starboard V berth area, as shown in the pic. I would have to build a flat platform for the battery to sit, and wedge it close to the bulkhead. Can the hull handle this weight up there, directly on the hull? Should I glass in some structural support to distribute the weight more?

 

[warthog5]

I added a 65gallon bait tank

Where Exactly did you mount it? On the Swim platform? Putting a battery in the Bow is a Bad idea... Pounding a Battery is not good for them.

65gal =539.5lbs Thats what you need to Rethink and WHERE exactly it is sitting in the boat.

 

[tomc585]

Battery-Bow-Bad

 

[izzy003]

I mounted the tank as forward as I could, using the existing deck cutout. I only run it about 1/2 full when I go offshore, even 1/2 full keeps my live bait much happier than my old 28 gallon tank. Filling it completely would be way too heavy imho, especially with full tank of gas, ice, and fishing buddy.

The boat does sit a bit lower, with the rear deck drain scuppers on the transom mostly submerged. I have 3 of the deck drains below. It makes me nervous having the rear scuppers submerged, so was planning on adding light weight Trudesign ball valves to the 4 1.5" thru-hulls on the transom for some added insurance. I have 4 1.5" thru-hulls on the transom (3 deck drains and 1 bait tank discharge), and adding bronze thru-hull/ball valve/hose fitting would be like an extra 50lbs. Trying to have a bit safer alternative that is light.

Sounds like moving the house battery to the bow wouldn't be the best move.

 

[Bodick93]

Lithium batteries maybe? I know those AGMs were expensive, but don't know where they are in the lifespan.

 

[Inshore Chaser]

Lithium batteries maybe? I know those AGMs were expensive, but don't know where they are in the lifespan.

Assuming the boat is powered by Yamaha...it will not support charging lithiums. At least according to Yamaha's manual. You would think the newer models would be compatible but apparently not.

 

[Aheider]

I'm not sure moving the batteries forward as described would change the attitude of the boat an appreciable amount. You might create a lot of hassle for nothing.