Originally Posted by troymail
Ditto - I had my radio on USB power for more than a week and when I unplugged I had my full battery power that lasted for many, many hours.
Are you sure it's drawing power from the USB? Does the ICON show a battery or a plug when on USB power?
Shows a plug.
This is with the cable plugged into a computer's USB port. Maybe it behaves differently when plugged into a 5 V wall wart.
When I unplug it from the computer, the battery icon is definitely lower than when it started.
Although maybe it comes back up after a while.
Another thing, it seems like the plug icon is displayed even when the computer is turned off.
So maybe the bottom line is that the battery/plug icon is unreliable.