CR123A 3V Lithium Battery Tactical Configuration - Box of 12, Shrink Wrapped in Pairs

Cause when you need them, you better have them. Works in my security system for my home.

Security cameras half the cost of other batterie I was using and last just as long

They work as described.

I have tried several other Batteries and these are the only ones that last a long time in my Arlo cameras. They are amazing. Worth the wait. Only Batteries I will buy. I get a lot more recording time with these batteries.

Good value. Reasonable life in the Helotex and Optilight flashlights. Took the Optilight to England on a vacation for three weeks and used it every day (night) on various brightness levels and then used it at work for another two weeks after we came home before the batteries died. They don't just die, the light will fail to select the highest brightness level on the switch so this is a good indicator to replace the batteries. I cant comment on the shelf life as I have only used them for a few months.

Been using this brand for years. Come shrink wrapped so you can quickly and conveniently change them out. Work great and fit perfectly in all my Surefire lights.

I bought these to replace the batteries in the sensors in my Simplisafe alarm system. The fit and work perfectly for this application and are far cheaper than buying them in packs of two in the drugstore or from Simplisafe. I saved about 75% by buying them in bulk this way. The quality appears to be just as good as Duracell or Energizer. So far these are a great buy and I recommend them.

I have not tested each battery, but the ones I have installed are still working as well as any brand I've ever used. I've been carrying these sort of flashlights for 10 years.If i find any shortcomings I'll edit this review. Batteries do need some time to evaluate.