I ran a battery on autopilot and one on DJI GO. They both worked flawlessly. No issues what so ever. No lag, no signal problems, all the features I tried, worked perfectly. I am running a iPad Air 2 with the latest DJI firmware and 9.0.2 on my iPad Air 2. Now if I could just figure out my horizon tilt I'd be all set. I called DJI and they suggested a few option to fix it, which I've already tried. He said best bet is to send it in. Which I am going to do when it get super cold out.