GoKawiilEPA data shows Level 1 EV chargers add about 5 miles of range per hour
Comparing home EV charging options, the EPA estimates that Level 1 chargers—which use a standard household outlet—add roughly 5 miles of range per hour, enough for about 40 miles after an 8-hour overnight charge. Level 2 chargers using a 40A circuit can add more than 30 miles of range per hour, making them better suited to drivers who cover longer distances or face cold-weather battery warm-up needs.