Extra 40% off select batterries. Amazon has the 24-Count Energizer MAX AAA Alkaline Batteries (E92DP-24) for $12.19 - 40% off (check “Save an extra” box, eligible on first S&S order for this product) - 5% off with Subscribe & Save (can cancel at any time) = $6.70 with free shipping on $35+ or with Prime.
Also on sale (price after coupon & S&S):
