I emailed a few sellers on AliExpress and Alibaba and didn’t get a good feel for the products they were selling. There’s A and B grades, old stock, fakes etc. So I went with Mahbattery in the US. Had to ship to a Kinek in Niagara Falls over the border then picked them up there, no issues. No one wants to ship to Canada as li-ion are considered Haz. Even couriers aren’t too knowledgeable in what a “cell”is and what a “battery” is. Anyway, at $4 and free US shipping I know I got grade A-1 originals. Mfg date in 2017.