I would recommend cloning it with another program, like SuperDuper!. For me (at least) Disk Utility will have errors every time I try to clone a drive, which is why I prefer to use other programs. I hope this will solve the issue.
I would recommend unplugging the charger and battery then pressing and holding the power button for 10 seconds then pressing and holding the power button while plugging in the charger and then quickly release and press the power button. If this works then it might be something with the charger.