Aren't all made in u.s. cr123a from the same factory anyway?
Some people say yes, some people say no, some people say even if they are, it doesn't matter because they're made to different specs. I'm unaware if there are 1, 2, 5 or 100 lithium battery factories in the USA.
Personally I've had the best luck with Sure-Fire and Duracell.
I don't use that many primaries anyways, I mostly use rechargeable batteries. I generally just stick to SureFire and would probably do so even if I used a lot of primary batteries because I value my lights and myself. That's not to say SureFire batteries are immune from going nuclear, but it seems a lot less likely.
I don't want to let out any secrets, but I know that the company making the BS cells for them begins with an "R" and ends with a "C", and there could be a "ayova" somewhere in between. No info on wheather other branded products are made in the same plant they use or not.
Looking at my other batteries and ones in the stores, all of these also have the green plastic ring:
Panasonic, Streamlight, Surefire, Energizer E2, Duracell Photo Ultra. I haven't found Kodak and Rayovac yet, but I believe they'll be the same.
I've been comparing Made In USA CR123s, and have found the Panasonics have a green plastic ring at the base between the battery and the wrapper at the negative end. You can see it under there easily, even in the blister packs in stores. None of my Chinese (various brands) or Japanese (Sanyo and Maxell) batteries have this.
Looking at my other batteries and ones in the stores, all of these also have the green plastic ring:
Panasonic, Streamlight, Surefire, Energizer E2, Duracell Photo Ultra. I haven't found Kodak and Rayovac yet, but I believe they'll be the same.
So, if your BatteryStation CR123s have the green plastic ring, I'd say odds are good they're made by Panasonic in the USA.