Just got my Nichia D25C and love it overall. I have an AW Black 16340 (freshly charged) in there and I know the turbo mode lasts 200 seconds and that it is of course normal for a light to get hot during these times. I just had it on for maybe 5 minutes, and the light was unbearably hot - to the point where I could not hold it anymore. I turned it off. After removing the battery the battery was warm, but not nearly as hot as the tube. Is this normal?