I recently recieved my first lithium powered light (a Micra and thank you Mr Keith and Mr Wayne!!) and it seems that there is a weird smell coming from them. It doesnt stink, but it sort of concerns me. I heard about a guy's flashlight exploding because of hydrogen or something buildup inside the body. Now for a moment I though that it was the brand, but I currently have 3 different types of lithium batteries and they all give this smell after being used in the light. My only guess is that there is lubricating oil on the O-ring of the light. Does anyone know for sure?