Amazon has Duracell Coppertop AA 20 Count Pack Batteries on sale for $9.11 right now, down from $17.99. Click “Subscribe & Save” to save an additional 15% on your order and get each 20 pack for only $7.44 with free shipping! You can also do the same deal with the Duracell Coppertop AAA 20 Count Pack and get them for only $7.63 after Subscribe & Save!
You can always unsubscribe from these later, but this is a great option for getting cheap batteries!
(Thanks Moms By Heart!)