hdsoar,
You are missing the point of my post. I am not talking about specific voltages and such, but rather about safe PRACTICES that you as an RC user does. Let me ask you a question. With an pre-spectrum radio did you just keep flying all day long?? Of course you didn't. You monitored the voltage of your batteries and when they were low you quit flying. You put a battery in your plane that was capable of handling the load put on it by your system. It's the same thing with the Spektrum radio as well. You should monitor your battery and when it starts getting down to the point that the voltage could drop below the reset point you should quit flying. You should also make sure that you have a battery in your plane that can handle the loads placed on it during flight. Plain and simple. It's the same practices that have been in place since RC started. They still apply today just as they did 30 or 40 years ago.

Ken