I have no electric system in my airplane. So I power this with a lipo. After 1 hr flying I use around 300 Mil amps from this 2650 lipo 14.8 v battery. Its velcro'ed in place.
I was using a radio for the first year I flew out of this field. Not one time did I hear any traffic. I then asked one of the helicopter pilots what channel he monitored and he said, Capital airport.
That explains why no traffic on the radio. I would hear traffic miles away but nothing local to me.
Since I installed this unit now I see them coming.