DenzO,
Yes, the Optima batteries are good. They are a sealed cylindrical celled battery. They come in two versions, red & yellow tops. One is a deeper cycle battery as I recall, but I don't remember which one is which.

As an alternative for comparison, you might also want to check out Interstate batteries. They too are a very good battery. They use to pull them off the shelf dry and only activate them when purchased, guaranteeing an extremely fresh battery. Don't know if they still do this or not. Last time I purchased one was (4) years ago, and still going strong. Either way, you wouldn't go wrong with either manufacturer. Good-luck with your purchase.
Rich - Ashburn, VA