<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Stainless:
... (I have a surefire 8nx rechargeable... BOTH batteries that came with it are defective - as I get about five, NOT fifty minutes per charge. I haven't gotten around to calling factory customer service yet...)<HR></BLOCKQUOTE>
I have an 8AX as well, and of the four B90 batteries I had, two were similar to yours. An email to Surefire CS got a quick response with an apology, a confirmation that a short run of batteries had problems and a request for my address to have two more quickly sent out. Three business days later, all was well. Give SFCS a chance to make it right, they're excellent with customer support.
That being said, an 8AX, 8NX, or one of the Stinger series would make a great rechargable general purpose car flashight when matched with an installed quick-charger. With a quick-charger and a couple extra batteries, you'd be all set.
I've tried the Petzl Zipka, and found that in spite of its light weight, that thin cord wasn't every comfortable for me. I exchanged it for a Tikka and am very pleased with how light and comfortable this other light is. It's small enough to have on my head while working on cars (like underneath or cramped under the dash), and bright enough (but not too annoyingly bright) to comfortably read at night without waking my wife up.
Arc AAAs are excellent keychain EDC lights in a LED option, a great combination of size to brightness. Another is the Photon for an even smaller package, but at a reduced output.
Incandescent EDCs I've become very fond of are the Surefire E1e and E2 that I have. I always have at least one of them with my all the time.