A professional job typically signifies that someone is in the highest-level position in his profession, or has the potential for upward mobility with experience. A non-professional job usually means that you perform front-line or lowest-level duties in an industry or company. Laborer jobs and front-line sales and service jobs in retail are listed as examples of non-professional jobs on the University of Illinois website.
The J1772 plug was specifically designed for electric car charging. Problem is, given a typical electric car like the Nissan Leaf, it can take 15 hours to charge the battery from empty to its EPA-rated 75-mile range from that standard household source. Most plug-in cars have a J1772 port, letting them plug into public charging stations.
Charging times depend on the size of the car and how big the battery is. The typical charge time for pure-electric cars using a standard UK home wall socket is between six and eight hours. PHEVs and E-REVs take much less time to charge because they have smaller batteries. Most new pure EVs can also use rapid charging points that can top up the batteries to 80% capacity in around 30 minutes.