Trevtrain
Enlightened
My light just won't turn on sometimes. I'll go to use it, and nothing happens when I click or hold the button. Tightening the tailcap doesn't do anything. I have to unscrew the tailcap half way and least and screw it back on to get the light to work.
Also, when I put it in turbo mode now, it will blink 3 times and flash the warning signal that the voltage is too low. I thought this only came on at 3.1V? The voltage indicator in the light says 3.5V. It doesn't do it in any other mode.
I haven't gotten mine yet but I'm informed it has reached DHL in HK. So the following brief comments are just suggestions, not yet verified on "in the hands" use. :)
Regardless of voltage indicators, 3.5V is pretty low for a Li-Ion. Does it measure this voltage under load (like the predator) or when resting?. Does it measure it at the output level you are using?
It sounds like your battery might simply be low. Is it a good quality cell such as a Panasonic? Can you try the same thing with a quality, fully-charged cell?