Batteries, especially before the expiry date, shouldn't corrode while still in the package! I don't buy Duracell often, after finding out the much cheaper Panasonic batteries last JUST as long, if not longer, than Duracells. To be safe, I looked through all my devices, and removed any Duracell batteries I found, tossed them, and replaced them with Panasonics.
I can remember bask a few decades ago when Duracell was considered "THE" brand to buy. Today, not so much. May have something to do with Proctor and Gamble buying them out a few years ago. Proctor and Gamble is a "household cleaning and health" type company. What da FUCK dey know 'bout BATTERIES?!?