Originally Posted by bas-r
Odd, the same thing happened to me. Just after I unplugged my phone from my pc. Strange...
Happened to me: I charged the phone to 85% using a laptop USB then took the phone out to use it, when I came back 30 minutes later I plugged back in to continue charging it dropped to 1% instantly then powered itself off as battery was nearly flat. Reboot phone then plug into laptop and starts charging from 1%.
10 mins later it's about 8% charged and I take phone to car, charge it using a Motorola car USB charger and the phone battery goes back to about 85% instantly.
It seemed to me that using a PC usb socket to charge the phone caused the issues rather than using a 'proper' charger. Maybe others can confirm whether they've had the issue only if using a PC usb port to charge it up?
Mine is UK tesco 8GB Moto G running Kitkat official firmware, not rooted, bl locked and not been flashed other than official software.