Originally Posted by
najay
The turning off the cell phone this isn't that stupid ... cellphones tend to kick into high power mode to find cells if there isn't one local, so you are causing excess RF interference (and battery loss) by not turning it off.
The no-cell phone rule is not justified by safety concerns since cell phones operate in a different frequency than aircraft navigational equipment.
I have inadvertently left my cell phone one a few times and I'm sure that on the average flight there are probably a dozen cell phones left on by mistake.
Now, if you leave your cell phone on and it drains your battery, that's your problem, but a dead cell phone battery won't make the plane crash...