I had shelved my SB-800 (sans batteries) a year or so ago thinking I was going in a different direction. But today, when I needed it for some pictures of my kids, it would not work at all. Zip. Zilch. Nada.
Multiple sets of fresh batteries. On camera. Off camera. I even (GASP!) got out the manual to see if I had pressed some secret button combination that had disabled it. Still nothing.
So my question is: Has anyone had this happen? Has anyone solved this problem?
Sorry to hear of your problem. What happens when you turn it On: Nothing, or does the Speedlight power up? If nothing happens, try cleaning the electrical contacts on both the Speedlight and the batteries. It would also be a good idea to check each AA cell. Good Luck and Enjoy your Nikons!
Corrosion it was. When I finally found the 5th battery accessory/cover and tried it, the problem was corrected. Then I looked more closely at the standard battery cover and saw the black crud that was causing the problem.
Reed, I know this is stating the obvious, but never store flashes or other other electronics, long term, which use removable batteries, with batteries in them. Moreover, always store them in a cool, dry place, preferably with a desiccant such as silica gel, to reduce the moisture in the air in which they are stored.
I store my batteries separately from my SB-800 and SB-900 speedlights and have silica gel packets in the case in which they are stored at all times.