Surefire do produce great and quality lights, but my experience with their batteries had been less than satisfatory. Out of a box of 12, I had 2 pairs that died in my light(G2Z). /ubbthreads/images/graemlins/icon15.gif
First time I saw this happening, I thought it was me who had lost count of time and forgotten to change battery. But then the second time happened when I had only used it for less than half an hour(more like 10-15 min), and it just went dead next morning.
Ever since then, I didn't bother with the rest of the box, and only use them for in home usage only(in house light). The batteries expiration date is 05-2013, and it happened sometime in late 2004. Since then, I switched to other 123, I had no similar occurance happening to my G2Z. /ubbthreads/images/graemlins/tongue.gif