I had a similar problem. The G10T would flash and the charge indicator would appear to be processing, but after five or ten minutes, it would stop (I have firmware 1.30). I removed and plugged it several times, probably 20 times, and it finally charged all the way. I had a habit of leaving it in the guitar when not in use, sometimes for a few days, which I read is not the place to leave it (put it in the storage port, or simply lay it out somewhere). I'm not sure if that matters, but it makes sense not to drain it completely.
On another subject, I had an ah-ha moment yesterday watching a YouTube video (Ben Craven) on advanced POD GO settings. I had no idea there is a hidden switch in the pedal. Stand on it and it becomes a wah-wah. Maybe everyone knew that already? I learn something new about this POD GO every day.
