Anybody ever have flickering problems with an RR 1watt 1AA

[Cyblade]

I've been carrying this light everyday clipped to my pocket for those times when alittle light is called for. A couple days ago I went to turn it on and it was really dim then it went to full brightness. Every time I turn it on it changes sometimes it's fine sometimes dim and sometimes dead then I shake it abit and it will go normal or die. I've check the battery it's at 1.35 volts and both the battery terminals are clean and so is the connections in the light. I got an email into River Rock and I'll probably call them on monday but I was wonderng what you guys thought.

 

[L.E.D.]

I have had a few, actually. You might need to unscrew the head and then clean out the two copper rings that are inside, also cleaning the unanodized front lip of the battery tube may help.