03-26-2007, 08:39 PM
I have run the Optimas for three years now and I am mostly happy with them. I like the fact that they are sealed and will not spill acid in my aluminum boat. They have a lower internal resistance so they charge quicker than wet cell batteries. They last a long time as far as total lifetime goes. Their down side is, they are expensive and they don't have the amp/hour capacity of a rectanguler style battery of the same size. The reason for this is the cylindrical "six=pack" make up of their cells leaves space between the cylinders where there is no lead. Therefore they have wasted space and less capacity. They are "AGM" type batteries and I am sold on the technology. I think that when I replace them I will probably get a couple of Cabelas AGM batteries. They are the rectangular type "AGM" and they have more lead and therefore more amp/hour capacity. I am staying with the "AGM" technology.
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