DURNERGY CR123A Lithium Batteries 12 Pack 3 Volt 10 Year Shelf Life High Power 123A Battery Compatible with CR17345, CR17335

I don't know what to say except they work. I have used it intermittently for a while now in my surefire flashlight and they seem to last as long as the big name brands. I haven't replaced the first set yet so I am pretty happy with that. They fit good and work just like they should. No complaints.

Great price and they work fine.

Very effective. Used with high output lights and very bright long lasting power.

There are more brands of batteries out there now than ever before, and it's sometimes hard to decide whose to buy. I'm happy with these Durnergy 3v Lithium CR123A ones. They appear clean and well-made (with one exception noted below), and they check out from a voltage standpoint. They advertise a 10-yesr shelf life like most lithium batteries, but I'm a little disappointed they don't show an expiration date like most batteries these days. If I have these batteries for a long time, it would be reassuring to check and find they still have 5 more years of life, for instance. And the exp date also is an insight into how old they are when received. So for now I'll just date them with a marker and hope they weren't years into their shelf life when delivered to me. I was also disappointed to find one of the batteries damaged (see photo). It somehow got a dent during some phase of manufacturing or packaging. It checks out fine on my multimeter, though, so I'll still use it. I'm deducting a star for the lack of expiration labeling and the dented battery, but otherwise they should be good.

Several times I have put 4 brand new batteries in my camera and initially it works but then the following day they are dead. Put 4 more new ones and they work. Just an FYI, this has happened to me several times now.

I am switching over all my battery powered flashlights to ones that use these CR123A batteries. The shelf life on these is ten years, and more importantly, I have never seen one of these leak. The standard alkaline batteries seem to leak all the time nowadays. It didn't used to be that way. These batteries are high quality. They fit and function just like the brand name versions. Quality and capacity are good. They are a good value.

So far So good

They dont seem to last long.