Last time I had my Typhoon H out the first battery I had no trouble with the connection between camera and the ST16, the second battery on the same day the camera did not connect with the ST16 until I had landed. Since I am not a techie I have no idea what to do, I did the only thing I could, and that was to take the camera off the drone thinking it might be a bad connection, that is about the extent of my knowledge. Anyone that might give me a idea what might be the problem would be much appreciated. Thanks