If you want to stock up on batteries, head on over to Rakuten and check out this great deal! They are offering a 40-pack of Duracell Alkaline Batteries for only $11.99 + Free Shipping, which is only $0.30 per battery shipped to your doorstep. This bulk package consist of a 30-pack of AA batteries and a 10-pack of AAA batteries. Check out the deal here!