DC fast charging, also known as Level 3 charging, is a method of charging electric vehicles (EVs), significantly reducing the time needed to replenish a battery. Unlike Level 1 and Level 2 charging, which uses alternating current (AC) and relies on the vehicle’s onboard charger to convert AC to direct current (DC), DC fast charging stations convert AC to DC before delivering it directly to the vehicle’s battery. This bypasses the onboard charger and allows for much higher power transfer, enabling EVs to charge up to 80% in as little as 20 to 30 minutes, depending on the battery size and the charger’s output capacity. 

DC fast charging is beneficial for long-distance travel and high-mileage driving, although it can put more stress on the battery than slower charging methods.