Which AA Battery is BEST? I did a bracket-style tournament competition to find out which batteries you should consider buying. The battery competition is fierce, but you might be surprised by the bracket results. I know that I was!

With the help of science, we test which batteries last the longest, and which AA battery brands offer the best value (cost per amp). We'll also learn what happens when you cut a lithium-ion battery in half and put it in water (hint: it makes a lithium battery explosion). We'll see what's inside a battery, and learn the juicy science behind which AA battery brands are the best to buy.

Tested name-brand batteries include Energizer, Duracell, Rayovac, Eveready Gold, and Fuji. Off-brand battery tests include Amazon Basics, Target (Up & Up), CVS, RiteAid, Dollar Store, Wegmans, and Giant Grocery.

#batteries

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