[Elecraft] "Good QRP practice"?

[John Flynn]

Good Day Everyone,

In a recent discussion concering KX3 battery life, Wayne N6KR mentioned:

"Transceive operating time from an internal battery will be determined by
voltage or energy-density limitations of the 8 AA cells being used. You'd
probably be transmitting something like 10% of the time (good QRP
practice)."

I'm really new in amateur radio and even newer (if possible) in working QRP
with my KX1 and working on my skill set. My question is why is a 9:1 listen
to transmit ratio "good QRP practice"?

Tnx es 73

John KK4BOB

John Flynn
Tallahassee, Florida
USA