Originally Posted by Sudsy
Check "Failsafe" settings too. It's a terrible thing to watch your new quad sail off into the blue!
I set mine to just above hover so in theory it will make a slow decent when the batts start going low!
It's just theory, but In reality you will burn your ESC's or motors when quad crash land on failsafe set in this manner.
You are not first to try this, and not first to fail badly.
There are only two valid failsave options for multirotors and using other methods will get in you trouble:
1. Cut all engines to 0% aka NO PWM-PPM
2. GPS-RTH procedure.