Another cautionary tale. When the low battery warning comes on, its a good idea to:
1. Land as soon as possible.
2. Don't try to cancel the automatic landing when you have less than one minute of battery life and the drone is moving in one direction.
Otherwise you're going to have a catastrophic event like what happened to me today!!
P.S. I also blame the damn DJI Go 4 app because it forces you to either let the drone land automatically or you need to hit the cancel button. In my particular case, I tried to do too many things at the same time.