This deal has ended.
Today only, Amazon has 20-Packs of Duracell Batteries (AA or AAA sizes) on sale for $7.16 and $7.03 respectively when you choose "Subscribe & Save." You can cancel the subscription at any time after your order ships. That's the best battery deal we've posted in months. Shipping is free and there is no sales tax (except KS, KY, ND, NY, WA).