What size Battery?

[Extra260]

Can someone tell me what the minimum cranking amps are needed for a 2002 OX66 225? I have a Optima series 27 in it now that has gone bad. The Guy at the marina is telling me 800 cranking amps is not enough. Problem is without a lot of shifting of batteries ( four of them) and oil tank, a 27 series is what I would like to stay with.

Thanks
Mark

[BuzzB8]

I have a group 24 interstate that's 1,000. It came with the boat in 2003 and still seems to be working ok, but I plan to replace it in a week.

[wildkat7]

512 is the minimum Cold Cranking Amps, per the manual for my 225HP OX66, which is a 2001 model.

I have 27s for mine and I think they have like 800-900 CCA and they work fine for my motor.

[Ranger391v]

+1 on the 2 above.

I've ran 800's w/o problems. I've also ran 1000's. I like the 1000's the best, but generally have had to settle on a 800 when I had to have something right away after one dies. Generally get 5yrs out of either size as a dedicated cranking and electronics battery.

[Extra260]

Thanks Guys. I felt like the 27 with 800 cranking amps was plenty myself. I'll just replace what I have.

Thannks again for the input