If you have ever priced any of these button cell batteries at the retail stores - especially drug stores - then you already know how outrageously priced they are. I think I paid about 3 bucks for this 30 pack, and this is often what you would pay for just 1 at retail! So even if I cant use all of them before they expire, I am still way ahead of the game. I have already replaced 3 watch batteries and have had no issues - quality seems good. Bottom line, cant go wrong here!