This 36-Pack of Amazon Basics AAA Batteries, originally $16.80, is currently $13.01 at Amazon. A 36-pack of Duracell AAA batteries costs $40! This is also a better deal than what you'd get with lower-tier batteries. For example, an 8-Pack of Great Value AAA Batteries is $3.68 at Walmart, which gets you each battery for $0.46. With this deal, each battery is $0.36. Shipping is free with Prime or when you spend $35. Otherwise, it adds $5.99.