Amazon.com offers 16 Duracell Ultra AA Alkaline Batteries
(two 8-packs) for $8.07. Buy five (80 batteries total) for $40.35 with free shipping
. Then apply coupon code "DURAO9O8" to cut the price to $30.35
. At 38 cents per battery, it's among the best prices we've seen for Duracell.