Review on ⌚ AG12 386 Button Cell Watch Batteries (10 Pack) - Long-Lasting Battery Power for Your Timepiece by Trini Tremblay

I bought these batteries to replace the ones in the Little Golden Book Golden Sound Story book series that I bought 20 years ago have. Replacement batteries were not commercially available. I found matching batteries at several online stores, but they sold in pairs for three or four dollars each, and I needed nine batteries for three books. These batteries arrived early today in a set of 10 for $4 including shipping. They fit and seem to work well. Can't comment on durability (don't expect miracles for such a price) but the original battery pack (also from an unknown brand) lasted 20 years in these books so I'm not worried about that application.