This pair was used in an electronic device. When it failed to turn on, I opened the battery
compartment to find two Duracell batteries, dated March, 2018. That date was a year in the future.
One battery was OK, but the other had leaked a corrosive chemical that damaged the electrical contact.
What to do? Alkaline batteries from the CVS drug store have never damaged any of my equipment.
That isn't a guarantee that none will ever cause a problem, but this I will guarantee:
What you DON'T want to see is this: