Have had many Optima and they don't hold up

Do you guys leave your boat plugged in all winter ?

I have had so many Optima batteries go bad that I would never go back to them, even if they changed their ways... Deka's have been ok....I have interstate commercial batteries that I use for starting and they are ok at best...I have deep cycle Odyssey batteries (their 2250 model) and they are by far the best battery I have ever owned...Prob why they have a 4 year free replacement warranty which is unheard of in the battery world...Odyssey's are the best batteries in the world, which is prob why our military use them as well...because there not cheap!

Sears Platinum marine batteries are made by Odyssey. They have a 3 year replacement warranty. I bought 2 grp 31 batteries a few weeks ago when they were on sale.