TJ, I don't know what brand "the most popular level 2 charger" is, but I have a JuiceBox and I've had two other brands, and none of them have lugs.? The 50A Juicebox comes with a #6 pigtail (bare or with plug).? ??
The 80% rule applies to circuit breakers, not conductors.? ?A 60A breaker with #6 wire is kosher and 50A continuous load is kosher (and realistically, I seriously doubt any charger actually pulls the rated amount continuously)
Imran, fyi 60¡ã wire probably isn't even manufactured anymore.? ?I can't remember the last time I requested a type.? Just this morning I bought wire at my local electrical supply and I just said "three spools of wire..." and I get 90¡ã THWN-THHN-2 (90¡ã rated)? I'm sure it's all they stock.? I'm pretty sure wire at Home Depot etc. like is the same.