I've had my NiMH-powered ARC HID setup for a bit over a year. No problems with it until yesterday on the way home from work. The wire insulation wore away at the lamp housing, and the two wires shorted together killing the lamp.
I called L&M today and asked about sending the lamp in for repair. My light is just out of warranty. I was told that it would be covered under warranty since it shouldn't happen. I'm bummed I have no light, but pleased they are covering it.
I purchased another one with Li-ion Ultra battery in the mean time .