Lipo- TX/RX

[MetalMan]

You could do the audible low voltage unit. But, you would have to make sure that it would be loud enough and placed where it could be heard.

[Papa]

I think an audible will not be heard do to the "noise". I am thinking:

lipo--voltage regulator--receiver-- steering
lvc--failsafe--throttle


lvc between rx and failsafe.

or no lvc at all and being cautious not to run it dwon to low.