Backlit dx3s

[slimthelineman]

Looked at the futaba 4pk systems and they also offer a 6.6 life battery option for the transmiters so I'm guessing they run on four "aa" bats too. It would seem that the voltage would be tolerable if fully charged if the companies are offering this choice in batteries yes? I know BrianG knows the answer I remember him testing this radio extensively in the past. Pretty sure he used a life too but....