Seems counter intuitive that the light would stay on bright if the batteries are run down, but if this happens again, I'll try changing them out and see if that works. Although I am one of those "non-light enthusiasts" myself, I do the same fauxton giveaways also because, well gee, everyone needs a light once in a while. Your source is cheaper than mine. Is "DX" the vendor? Seems that sometimes I use mine more than just about any of the other EDC stuff I carry, day and night. Not an hour ago I checked a power mower fuel level with my Photon. Fauxtons are great, no better bargain in a keychain light, but I appreciate nice stuff too .