Hmmmm... this is super strange. My wife plugged in her car last night around 8 PM like normal. But then, the car only charged like 4% over seven hours! Our energy monitor says we used the expected amount of electricity, so it's like the car was just sitting there doing nothing. Then, around 4 AM, I unplugged and plugged it back in, and it charged normally. Anyone else had this happen? Any ideas what could be going on? I'm baffled!