Duracell are sending out these mail in rebates by mail.  Nancy found this in her mailbox on Friday.   Get a $10 prepaid Mastercard valid for 6 months from date of issue.  Batteries must be bought by February 28th and forms received by March 30th.  Offer is valid one per name/household/address and you must be 19 due to conditions of the prepaid credit card.

I am not sure what stores would carry packs as big as these, I could only find 24AA/16AAA at Walmart so you may need to shop at Costco for these packs unless they are new and showing up in stores soon.  If you know where to buy these pack sizes, do let us know.

You do need an original card rebate to apply for this mail in rebate. I have contacted Duracell to see if they have a shareable form.