Products & Reviews
Which Car Battery is Best?
Optima AGM, Duralast, Everstart, Diehard, SuperStart, and Autocraft car batteries were tested for internal resistance, cranking amps, charge rate, and cold-cranking amps. [More…]
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Optima AGM, Duralast, Everstart, Diehard, SuperStart, and Autocraft car batteries were tested for internal resistance, cranking amps, charge rate, and cold-cranking amps. [More…]
Each OPTIMA® color designates a different technology. Your vehicle and your usage will help determine the correct battery color. [More…]
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