Look for coupons on Amazon page for Duracell which will drop the price of Duracell batteries even more.
Amazon Prime members will receive a $5 discount, good towards their next qualifying order when they add any Duracell batteries (sold by Amazon.com) to their current order. Customers who complete their qualifying purchase will receive their $5 discount via an email with a promotion code. When the promotion code is applied at check-out on their next order, the $5 discount is applied. You must be a current Prime member, or a Prime member in trial membership, to qualify