A bit of modern day electronic magic made a save for me about a month ago. While flying using a Hitec Eclipse with their 2.4 system I heard a loud annoying warning beep. Having never heard this one before I landed somewhat annoyed and confused.

The confusion soon cleared up when I put a meter on the flight battery and discovered it was critically low. I no doubt would have continued on untill loss of control. I was saved by the magic of telemetry downlink low flight battery warning.

John