I was having issues charging the Volt, and it seems that the end of the heavy duty extension cord I was using burned out where it connects to the charger. So I started charging with just the charge cord and it has no issues so far.
Since I charge at work (for free) in a big place with hundreds of people coming and going through the parking lot I invested 3.99 in some security. I'll see an immediate ROI if my charge cord doesn't get stolen