Tesla’s third-generation Supercharger had a maximum charging power of 250 kilowatts.
Tesla introduced the V3 Supercharger in 2019 as an upgrade over earlier versions of its fast-charging network. The system used a new 1-megawatt power cabinet and allowed compatible vehicles to charge at up to 250 kW. Tesla said the improved system could reduce charging time compared with the previous generation.
Actual charging power is not constant for an entire session. It depends on the vehicle, battery temperature, state of charge, and other conditions. Charging generally slows as the battery approaches a high state of charge, so 250 kW describes the peak capability rather than the average speed.
This figure is also distinct from the energy added during a charging stop. Kilowatts measure charging power, while kilowatt-hours measure stored energy. Tesla’s Supercharger hardware generations and vehicle capabilities can therefore produce different real-world results even at the same station.