Fast-charging stations, which feature a direct-current, 480-volt charging port, were supposed to eliminate long charging times for electric vehicles. The charger is said to "fill up" an EV's battery to 80% capacity in less than 30 minutes, according to Nissan. We equipped our 2011 Nissan Leaf with a dedicated quick-charge port, but until recently we haven't had a chance to test one out. Finally, there are a few in the Chicago area, but does the dream of quick-charging hold up to our real-world tests?