I saw at Sam's Club, a Champion brand battery recently. It was a deep cycle, sealed battery, like an Optima. It looked to be very cool, at around $99. My battery has died, and will not hold a charge no matter what. Anyone know what I am talking about here? Or own one? I cannot find this exact battery anywhere on the web to link, so if you know what I mean and where to locate one, please post up.... I'd like some opinions. Thanks!