The Duracell Coppertop Duralock AA Alkaline is part of the Batteries test program at Consumer Reports. In our lab tests, AA batteries models like the Coppertop Duralock AA Alkaline are rated on ...
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Are Expensive Batteries Really Any Better Than Cheap Ones?It's easy to take batteries ... pack cost per hour. The $4.99 CVS brand batteries came out highest with an average of 28.3 cents per hour, with each battery costing $1.25 each. The Duracell ...
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