I have had mine since last Tuesday and only had to enter the time when I first turned it on. I have had batteries in it and it's been on everyday and cycling through batteries without any trouble. I have never charged the radio through the USB.
I believe UP Man said the batteries will help keep the clock battery charged.
Originally Posted by KG6GTH
I cant find the thread, what is the process for getting the clock to stop re-setting? Do I have to leave it on for xx amount of hours?