Long story short, I had to do 'surgery' on my IM tonight because the helmet wouldn't light up. I opened up the back and fiddled with the batteries and now it works, but I don't know if I should attempt to get a new helmet or if it really was just a 'loose' battery. (Meaning, there might actually be a short and I'm just not recognizing it.)
Any advice?
the helmet has nothing to do with it, the LED neck post is a separate piece...