The AGM design features spiral cells filled with highly absorbent, fine fiberglass mats. Invest in the Yellow Top, a high-performing AGM battery from Optima, an industry leader in advanced battery technology.
This battery is likely the best car battery I have ever purchased. Completely maintenance free and extremely durable. Start ups are never slow to crank , even in cold conditions. You get what you pay for - true for this item.
Optima have proven to be the best batteries for my needs.
Over the years I have bought numerous Optima batteries - at times paying over $300. I have both red and yellow top batteries currently in use. Life expectancy has been 8 to 10 years. They hold a charge for a very long time and have high cranking ability. That with no servicing required makes for a very serviceable battery which more than compensates for the slightly higher price paid. My advice is to shop around on Ebay as there is a large price variance between suppliers.