Oily grey ring around CR123A batteries


Newly Enlightened
Apr 13, 2014
I have noticed that on both ends of my Surefire CR123A disposable batteries inside my LX2 Lumamax flashlight there is a grey ring. The ring is thin but there is a grey liquid that rubs off. I have been keeping the batteries inside the flashlight when I do not use it, although I did not think that would be a problem. Also, around the tailcap threading there is a black liquid which I am not sure if it is suppose to be there to lube the threading or not.

Please help, thanks!