Originally Posted by 29Firefox

Stick with a "marine rated" battery. It's safer. Also if its a wet cell type make sure it's in a compartment vented to the exterior

Originally Posted by 29Firefox

Lots of times battery manufactures will manufacture the same battery in both marine and non marine versions. But they will state if it is a "Marine" battery. The spacers between the plates are designed different. Using non marine batteries in a marine application will result in problems from early battery failure (shorted/dead cells) up to catastrophic failure (GO BOOM). Along with the problems of loss of warranty and or loss of insurance coverage.

Originally Posted by Chris Sunkin

Have you considered a generator? All that draw for a full day is beyond the scope of just about anything marine. As was said, you could rig in a towmotor battery but when it fails and explodes from the bouncing that a boat gets, don't expect your insurer to take your calls.

Originally Posted by sleek1

I've also heard golf cart batteries are the way to go.

Originally Posted by drgnrydr

I was running 4 oddssey pc625s on my eliminator with a 14speaker 2000 plus watt system .They worked flawlessly plus two of them were lighter & smaller than 1 deep cycle battery. Actually am going to do the same to my fountain since I had such good luck .