Early last week (Tuesday, Sept. 27), I was waiting on a train and to pass time, I walked into a tire store, which is part of a very large "chain." Of course, they also sell batteries, so I wandered over to a rack of various batteries, which were mostly their own private label brand, but also a fair number of Optima Yellow Tops, including one with a sticker that read 10/16. Hmm, it's still September. That was the only battery on the rack with an October date. Wonder how long it had been on the rack
Maybe an aftermarket date label, applied by the store. When I got my Optima there was no date label. I think all the battery manufacturers are cagey about that, there is a date embedded in the numbers, but you need to contact them to get it translated.
