I updated the firmware today to see what they updated. While going through the menu, I did a battery check. The battery in the MB-D10 registered at 97% and the internal battery didn't even register, just as if it wasn't installed. Powered off and on a couple of times with no change. I removed the MB-D10 and the internal battery now appears and registers 77%. I didn't even open the camera and touch the internal battery. I reinstalled the MB-D10 and both batteries now register correctly. I had this same problem a couple of times before and had sent the camera to Nikon to fix, but apparently the cleaning and adjusting of the MB-d10 didn't do much good. The contacts should be in good shape as I just recently used De-Oxit on them. Going on a 10 day cruise to Alaska in a week and a half, so there is no time to send it to El Segundo. Come on Nikon, time to get your act together.
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