What is the difference between Level 1 and Level 2 EV charging?

Level 1 and Level 2 describe AC charging power, not connector type. Level 1 uses a standard 120-volt outlet and typically adds about 2 to 5 miles of range per hour. It can be enough for plug-in hybrids or EV drivers with low daily mileage.

Level 2 uses 208- or 240-volt power and typically adds about 10 to 30 miles of range per hour, making it the common choice for routine home and workplace charging. Connector compatibility is a separate issue. In North America, newer vehicles are increasingly adopting SAE J3400/NACS, while J1772, CCS, and approved adapters remain relevant depending on the vehicle and charging location.