As one of its daily deals, DealGenius offers the Duracell AA Alkaline Coppertop Battery 30-Pack bundled with the Duracell AAA Alkaline Coppertop Battery 10-Pack for $14.99. Coupon code "LOYAL5" cuts it to $14.24. With free shipping, that's $0.36/battery and the lowest total price we could find for this quantity by $13, although we saw the same bundle for a buck less last fall. Deal ends today.