DC Fast Charging (DCFC), also called Level 3 charging, delivers high-voltage direct current directly to an EV's battery, bypassing the vehicle's onboard AC-to-DC converter. Power levels range from 50 kW (older units) to 350 kW (latest generation), with most modern stations operating at 150-350 kW.
At 150 kW, a typical EV can gain approximately 150 miles of range in 20-30 minutes. Charging speed tapers as the battery approaches 80% state of charge to protect battery health, so most DCFC sessions target the 10-80% range for maximum efficiency.
DCFC stations use three connector standards in the US: CCS (Combined Charging System, now the most common), CHAdeMO (primarily used by older Nissan LEAFs), and NACS (Tesla's connector, adopted as the SAE J3400 standard in 2023). Major DCFC networks include Tesla Supercharger, Electrify America, EVgo, and ChargePoint. The NEVI program is rapidly expanding DCFC availability along Interstate highways, making long-distance EV travel increasingly practical.