So, I'm on my second G10 package from Gear4Music.com. I returned the previous one for the same issue that I'm seeing now with the replacement unit :(
Sometimes, after a full charge (often overnight), it only has half an hour or so playing time, before it blinks red and then cuts out completely. When I put it back in the dock/charger, it charges for just a few minutes, before displaying solid green again.
The problem is intermittent, but frequent. Is this a common issue? I have updated to the latest firmware etc.