No, they were simply the same 'label' (brand) Li-ion cells, of nominal '3.6/3.7V rating. They were my only experience with their cells.
The cells fundmentally lacked the performance capabilities required to properly operate the light they were being sold to work with (which was the original S1). It wasn't a 'good look';-) It needed a better cell, which is what mine got, and it worked as advertised with cells from a different manufacturer.
Ten years is a lifetime in Li-ion cell tech, and I'm their situation is different now - it must be.
Ahhhh.... I think I have it now...
You had problems with Olight batteries
That is good to know, and I will keep an eye on them