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Absorbed Glass Mat (AGM) batteries like OPTIMA® Batteries, help you avoid issues like spillage that can occur with traditional flooded batteries. Sealed AGM batteries do not sulfate or degrade like flooded batteries do, since they are not vented to the atmosphere. The absorbed glass mat design holds the electrolyte in suspension while keeping it in constant contact with the active lead material on the plates. This results in higher efficiency when both discharging and recharging, since there is more surface area contact between these critical elements.


In traditional flooded batteries, the positive and negative grids hang inside a box submerged in an acid solution.  With AGM batteries, positive and negative plates are separated by an absorbent glass mat that holds the electrolyte like a sponge. This minimizes the potential for electrolyte spillage. 

OPTIMA AGM batteries also use a higher purity of lead than many other AGM and typical flooded cell batteries at 99.99% pure, virgin lead. This higher purity means fewer contaminants and a lower incidence of gassing, which extends battery life and increases performance.

The OPTIMA battery’s design advantages include lower internal resistance and greater plate area for superior starting power, the ability to recharge much faster, and higher voltage characteristics during discharge. And it’s virtually spillproof, whether it’s cracked or damaged. Also, OPTIMA AGM batteries withstand vibration like a champ.

OPTIMA batteries high performance AGM battery benefits:

  • Impressively high cranking characteristics in a small battery
  • Higher charge acceptance during AGM battery charging
  • Sealed maintenance-free design
  • Virtually spillproof
  • Shock and vibration resistant
  • More power per pound as compared to standard batteries
  • Long service life
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