Originally Posted by
Falchoon
As I mentioned in a previous post, I have a red one strapped to the back of my helmet. Does everything it says it does, good value for the money. I've never used mine on constant, only flashing, so couldn't say how long the batteries would last. Never had a problem regarding quality though a mate of mine has with his switching off randomly mid ride.
Have him take a small piece of paper fold it into a very small shim and put it between the top of the battery and the case. Thick enough to work when it is screwed together. NO this is not a current path for these lights. I did it on a couple.