I got 8 AAs in the chamber and I've tested the output from these at 12v but the battery indicator in the menus reads empty. Also with the standard battery removed the camera does not function with the battery pack attached. All the auxiliary controls work fine but I'm wondering it there's something wrong with the unit in that it's not supplying power to the camera. I remember this being intermittant when I first loaded the AAs, I would get a full battery reading for the MBD10 but after a while it would read empty again. If I removed the MBD10 from the body and reconnected it again, the meter would read full again for a while. Has anyone else experienced this sort of behaviour with AAs?