After the kids went to bed last night I finally had some free time to play with the P4 I've had since release day. Got my Beta copy of Litchi all set up and a few test journeys plotted in. First was a waypoint orbit to a building down the highway about half a mile. Orbited at 130 feet, shot some video, and flew home. Everything went great, I didn't even really bother orienting the antennas and still never went below about 50% on the signal. Second was a lap around my subdivision with a few sweeps at the corners. I started to lose signal when it was in the far corner from me, but I wasn't too worried since I was flying lower (80 feet) and there are a row of two-story townhouses blocking line-of-sight. Signal dropped. Still not worried, the whole flightplan was maybe five minutes long, and I was more than halfway done, so I should hear it coming in no more than a minute or so. When that doesn't happen after about four or five minutes I start to wonder if somehow the failsafe wasn't working and it decided to either hover or land if it lost signal. I head over on foot to look for it near where I last saw it on the map, but it's nowhere to be found. If it tried to land it would have possible been in somebody's yard or a tree, and it's after midnight at this point so I don't want to get shot creeping around somebody's yard so I decide to call it a night and look in the morning. On the way home I realize that even if it hung in a tree or landed somewhere out of sight, I still should have been able to get a signal on the remote (It had plenty of battery when it left and had only flown for maybe 3.5 minutes). The fact that I wasn't able to reconnect seems...not good. Woke up this morning and headed over there again to see what I can find. Sure enough, first driveway past where I saw it on the map... Well lookie there: Imgur: The most awesome images on the Internet You may have to blow that up to full-size to tell but on the left edge of the driveway is my P4 (upside down) and in the bottom-right corner are the pieces of my battery. The white pieces between them are just random trash, not anything related to my drone. Battery closeup: Imgur: The most awesome images on the Internet The bird closeup: Imgur: The most awesome images on the Internet Back in my car right-side up: Imgur: The most awesome images on the Internet What used to be a set of props: Imgur: The most awesome images on the Internet The only visible damage other than a little scuff: Imgur: The most awesome images on the Internet Motors all turn fine and new props will lock in place (even on the broken mount) but those things spin so fast I don't want to run it with that chunk missing. Bad news not evident from the photos: Gimbal is trashed. When I turn it on the gimbal goes to one side and I get "Gimbal motor overload" error. Camera still works, though. Guess I have an appointment with DJI repair in my future, would appreciate any tips or recommendations on that. My questions: 1. Why did I crash? I was flying at 70-something feet, the trees there are maybe 50' tops. The video doesn't show anything, it was too dark to see if any branches were close and it just all of a sudden ends while the drone is in the air. If I had hit a tree wouldn't there have been a few seconds of tumbling/falling? 2. How the hell did that battery get so far away? I bet it was 20 feet from the drone, and all of the pieces were together (although I did move them a little closer together for the closeup photo). That seems like the battery ejected mid-air rather than on the ground. An impact hard enough to throw the battery that far would have done more damage to the drone than what it was. Any ideas?