My story is the same. I am now using a second one. I've had no problems. I believe the battery wasn locked in. I'm very careful with that now. No problems since. I now have spare parts, second ST16 and charger. Expensive lesson.
I had the problem, but I was at 300 feet. Third flight. Last week was too busy to begin CS process but will on Monday. I had a couple of terrific flights first. Really surprised.