[ishoot308]

Originally Posted by XCR-700

So when it comes time to replace your batteries, what are most of you buying?

In my situation, our a Formula 270 BR lives in a valet marina and the batteries go inconsistent periods of time without a charge and its undercover so a solar charger will not work.

Worse yet, it is stored all winter with no charger,,,

Clearly this is the worst situation you can subject a battery to, so whatever I choose needs to be super resilient.

Thanks!

I would be looking at a dual purpose AGM battery with the highest CCA and AH capacity. The main reason I recommend AGM is their rate of discharge is half of that of a flooded Battery at only 3% per month as compared to a flooded (lead /acid) at 6-7% per month. Since you have no way to trickle charge this would be a good benefit to you in my opinion. They can also take the pounding a boat gives better and are completely maintenance free. Optima and Duracell are two brands of AGM I have used with excellent success.

Dan