Wow, thats a lot of test shots of nothing. At a certain point Dave, maybe you should just trigger the light with something other than your camera. A lot of wasted cycles on your shutter just to test a battery that has been tested by the manufacture a lot more than you can.
Thanks for the effort, but save you shutter releases for real images.
The D700 shutter is rated for 150,000 actuations. 500 shots is 0.33% of that. The real-world data and observations (no charge light, recycle times) is worth much more than that negligible cost.
I test things myself when I can. It's not exactly rare for a manufacturer to be overly optimistic.





