Interesting. Half of my travel is between Nashville and Birmingham (190 miles, no SC access planned along route) and half between Nashville and Atlanta (230+ miles). Trips to Birmingham would be no problem with an overnight charge, and there are some CHAdeMO stations on the way (Huntsville, AL and Lewisburg, TN) that would make a there-and-back trip reasonable.
Trips to Atlanta would be a bit of a stretch without an intermediate charge, although again there are numerous CHAdeMO stations along the route. The SC station in Chattanooga is pretty ideal for a mid-trip charge.