If the charging head on the KFC fast food table does not go in, it is likely that the charging plug is damaged or the KFC restaurant intentionally broke the circuit there. As we all know, KFC restaurant, are popular dining tables and chairs, and will not prevent people who do not consume sitting in the restaurant, if everyone to charge, do not consume, then those who consume the guests have no place to sit down to eat, so in order to reduce the occurrence of charging seats, they cut off the charging plug.