Really wanted to like these batteries, great value and they do work well...INDOORS. Put them in a flashlight which I keep in my Yukon, It's cold here in Portland Oregon ( Nov. 2018 ). Went to use my flashlight the other night and it would not illuminate. Brought the flashlight inside and changed the batteries and it worked fine. The next morning, just for my own piece of mind, I put the previous batteries back in the flashlight and seeing as they had warmed up to room temperature they too worked fine. Put the flashlight back in the Yukon and waited until the temperatures dropped after nightfall and again, no illumination. These batteries are basically worthless for anything other than indoor applications. By the way, Energizer Alkaline batteries work just fine in cold temperatures so I don't want to hear the "should have bought lithium batteries" comments.