I bought two Nite Flux lights a couple years ago. I really like the lights. One battery wont take a charge anymore though. I have emailed Nite Flux and no reply. I have tried over and over again. They have the worst customer service I have ever found in a light company. Their batteries don't last either.
I had two vision stick battery's and a lamp head fail all within the first two months of ownership. I ended up turfing the second failed battery as apposed to sending it back to Australia for the second time and all the shipping fees, recieved a refund on the lamphead, and moved on to better products.
This is just my experience and may not be the norm with their products, but i would recomend you move on as well if your not been helped. There are so many quality company's that are less $$$ than the NF products you just have to decide which is best for you.
Darn. This sucks.
I've been looking at the Niterider Pro 1800 Race.