According to the US Department of Transportation, DC Fast Charging (often referred to as fast charging) typically provides power output ranging from 50 to 350 kW.
Understanding Fast Charging Power
Electric vehicle (EV) charging is categorized into different levels based on the power output and charging speed. DC Fast Charging stands out as the fastest method commonly available, delivering significant power directly to the vehicle's battery.
Here's a comparison of charging levels based on the provided reference:
| Charger Type | Typical Power Output | Estimated BEV Charge Time from Empty | Estimated Electric Range per Hour of Charging |
|---|---|---|---|
| Level 1 | 1 kW | 40 - 50 hours | 2 - 5 miles |
| DC Fast Charging | 50 - 350 kW | 20 minutes - 1 hour | 180 - 240 miles |
- Note: Level 2 charging (not detailed in this specific reference but a standard type) typically falls between Level 1 and DC Fast Charging in terms of power and speed.
Key Aspects of DC Fast Charging
- Power Range: The power output varies significantly, from 50 kW up to 350 kW or even higher at the newest stations. Higher kW values mean faster charging speeds, assuming the vehicle can accept that power level.
- Speed: This high power allows for replenishing a substantial amount of range in a relatively short period, often enabling drivers to add 180-240 miles of range per hour of charging, reducing typical charge times for a full battery to under an hour.
- Availability: DC Fast Chargers are commonly found along major highways, at public charging hubs, and increasingly in urban areas, designed for drivers who need to charge quickly away from home.
This power range of 50-350 kW is what defines a "fast charge" in the context of public EV charging infrastructure.
