Expiry dates for CR2016/CR2032 batteries ?

I have been buying these Li-button cells from various on-line sellers & have received batteries with a variety of date stamps, some don’t have any dates. Maybe in Chinese. I buy on line as the retail price of these cells in Australia is very expensive.
The latest batch I bought were stamped 2014-12. When I queried the seller I was told that this was the date of production !
I have never heard of this - how is the user to know how long the batteries are good for.

I suspect that the dealers buy up old stock that is close to the Best Before Date & then re-sell.

Any comments ? Can someone recommend a dealer that sells batteries with a good Best Before Date ?

good name lithium coin cells can last 10 years or more. im not from au so i cant help you on cheap online local retailers

I think youre being lied too. Im fairly certain the convention is those dates are best before dates. I always PM them and ask the BBD before I order and only order from someone with reasonably long dates, and someone who answers helpfully, not wishy washy. So far its worked fine for me. No idea who i ordered from though.