I had a strange issue with a battery- thankfully not a crash but definitely unexplained behavior.
I charged up all 3 of my batteries (one at a time via USB-C) as well as the controller in preparation for a flight. Going through the pre-flight, when I turned on the controller, I got a flashing light blue light, then a flashing dark blue alternating with dark red. The controller was “connected” but showed that the battery was at 2%. Not good.
I shut it down, put in a different battery and flew without incident.
When I finished, on a whim, I put the 2% battery back in and synced up. Lo and behold - it was at 87%.
My rationalization was that because the battery had been on the airframe during travel it may not have been seated properly as a result of jostling during transit.
New item on the pre-flight checklist: Reseat battery prior to takeoff.
