On average, Optimas do not outlast other brands, or types of batterries. That's why their warrantees are no better (and often worse) then you get from Walmart or NAPA with lower priced conventional FLA batteries.
I'll add are several companies using the "Optima" name for batteries.
The most commone "Optima" I hear about is the "Spiral Cell" AGM battery made by the same company that makes Walmart batteries, i.e. Johnson Controls.
Optima is an absorbed-glass-matt, lead-acid battery. What makes it "special" is that it's spill proof. It is also legal for air shimpent, which some dealers like.
Some conventional lead-acid car and truck batteries last 8 years, same goes with some AGMs like Optimas. But,the Optimas tend to cost more per watt of power and are more expensive in the long run. They are also less tolerant to imperfect charge conditions, when compared to flooded-lead-acid batteries.
I've seen AGM batteries fail miserably in heavy storage-type use.
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Today's Featured Article - Fasteners: The Nuts and Bolts of Nuts and Bolts - by Curtis Von Fange. The nuts and bolts of nuts and bolts is an interesting and essential piece of knowledge that applies to our older tractors. An improperly torqued capscrew on an engine head or a shear bolt that is too hard on the driving shaft of a bushog can create havoc and make an expensive and uncalled for repair. Let�s examine the purpose and design of these fasteners in order to ensure their proper use. Fasteners are probably one of the aspects of mechanics that is given the least amount of thought.
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