SAVE 49%: A 20-pack of Duracell AA batteries is on sale at Amazon for just $9.70, down from the normal price of $18.99.

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*If you click on a link in this article we will earn affiliate revenue. Amazon has slashed the cost of a handy everyday essential to keep all your devices powered up. The price of a 12-pack of ...

Discharge tests conducted on various Duracell and Eveready batteries reveal that the most cost-effective battery for the job depends on whether you are buying a small or large pack of cells. Our tests ...

All products featured here are independently selected by our editors and writers. If you buy something through links on our site, Mashable may earn an affiliate commission. A few things in life pose ...