I was flying along about 30 meters altitude and the motors suddenly sputtered and cut out. The bird fell fast and crashed into the only rock in the meadow. Luckily does not appear to be damage to the phantom or my sjcam. The aluminum camera mount actually bent though. I was only in the air a few minutes with a fully charged battery and was expecting an 8 to 10 minute flight. I wasn't watching the battery level on the osd since it was early in the flight, so not sure if it tried to warn me. It took about 10 minutes to find the crash. The leds were out. I tried disconnecting the battery and reconnecting -- nothing. Tried a different battery back at the car and the phantom booted right up and got a gps lock. Seems ok. The battery was a floureon 25C 2200mah and is dead as a doornail. Anyone else here had something like this happen? Search turned up a few incidents with the p2 proprietary batteries.