The most recent Elzetta video blog content is an important look at CR123A batteries. I have seen a handful of lights destroyed by mishaps with CR123A batteries and in all cases the batteries were cheap batteries that weren’t made in the USA. I have purchased cheap batteries in bulk only to find that the runtime was less than half in some cases.
US made CR123A batteries don’t have to cost much more than cheap foreign made batteries. This video points out that all domestically produced CR123A batteries are made in the same factory. Both Panasonic and Rayovac brand CR123A batteries are produced domestically and can be found at prices barely higher than the cheap non-domestic batteries. I have had great results with both.
Buying cheap, questionable quality CR123A batteries is false thrift… you’ll pay the price eventually.