Risky. Just my opinion but I would never determine my perceived battery level on time alone. I agree that in most normal conditions 12 minutes is reasonable...but not foolproof. There are other factors to consider that may impact on time in the air: Wind; aggressiveness of the flight; temperature, faulty battery, etc. It is entirely possible in some cases that after 12 minutes your battery could enter a critical state...or worse.Yes. I set an alert I my watch for 12 minutes once I get up as insurance. Gives me enough time to pay attention and get somewhere safe.
Not entirely true but I do agree with what you say and get your meaning....<snip>... Those that monitor their voltage and land as the level dictates will never encounter a battery warning