Duracell is now owned by Warren Buffet’s Berkshire Hathaway and the latest cells are not made in the US but in the EU.
I have had nothing but trouble with the AAs. Leakage and very short life.
At a recent class my Com Tac muffs went through two sets in one day. Brand new batteries.
So at least with the lot I have,
QC and QA seem to be in the sh#tter.