If you want those Fenix cells. A seller I have purchased cells from before has them. Everything I have gotten from them has been authentic as far as I can tell. Capacity and IR test have always been within specs as well as the weight. Don’t have a way of testing current output but they have always performed on par with similar known good cells. Free shipping. Not sure if the price is good or not as I have never purchased or researched those particular cells before.

https://www.ebay.com/itm/2-Pack-Fenix-ARB-L16-700mAh-protected-16340-Li-ion-rechargeable-battery-RCR123A/131636852529?\_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20140107095009%26meid%3D5967e1fe5b524d8ea2a98e97a14dde95%26pid%3D100040%26rk%3D2%26rkt%3D4%26sd%3D254099810852%26itm%3D131636852529&\_trksid=p2046732.c100040.m2060