Purchased several times - SureFire CR123 Lithium Batteries

I love Surefires Batteries in the bulk pack. I use high lumen/output flashlights and was fed up with paying crazy prices for minimum amounts of batteries. Several years ago, I found that the more I spend at one single purchase, the more money I saved in the long term. The fail ratio of these are very low and they have an incredible shelf life of ten (10) years. Outstanding product!!