Sears offers the DieHard AAA or AA Alkaline Battery 24-Pack for $6.29. Plus, Shop Your Way Max members bag free shipping. (Not a member? It's free to sign up for a 90-day trial; otherwise, shipping adds $5.99. Free in-store pickup is also available.) That's the lowest total price we could find by at least $4, although we saw the AAA pack for slightly less in June. These batteries have a 7-year shelf life.