Groupon offers the ACDelco AA Maximum Power Alkaline Batteries 60-Pack or ACDelco AAA Maximum Power Alkaline Batteries 60-Pack for $13.99. Coupon code "SALE3" cuts it to $12.59. With $3.99 for shipping, that's $17 off list and the lowest total price we could find. Deal ends May 19.

Of note, this coupon is good for up to three uses per customer.