Hi Tan, I found that the camera will arbitrarily choose between the sets of batteries when you turn the camera on, so both sets would be depleted simultaneously when they first went.
My solution was to remove the battery set in the camera and keep the one in the grip... Jostein > So, I finally splashed out and got myself the battery grip, but I am finding > that when connected, it keeps saying that "batteries are depleted", even > though both the grip and the camera have new batteries in them. When I > remove the grip, the camera works fine and the battery indicator shows as > full. > > I think I remember some time back, other people having a similar problem? > What solutions did you guys come up with? > > TIA, > tan. > >