Sears has one with a 3year warranty unless they changed.

"gprimerib" wrote in message
oups.com...
Get a marine battery.

No question.

And expect boat batteries to wear out faster than car batteries in any
event. The occasional use, long periods of inactivity (even if you bring
them inside over the winter, as I do), and deep cycling needed to start
the motor are just plain hard work. Car batteries aren't up to it.

Okay, a deep cycle marine battery it is then. I'm kinda a stickler for
putting unused batteries on battery tenders, especially on the toys
that don't get used as often as a car.