For my bolt i installed a nema 6-20 outlet, but i ran 10-2 wire ( which can handle 30 amps )
I have a level 2 charger i bought from amazon for 170$
I don't drive a whole lot, maybe 70 miles in a day. The 240 charger at 16 amps recharges about 11 miles in a hour, or 88 miles in 8 hours. Easily...