A 22 kW charger working at full power adds roughly 70 to 90 miles of range in an hour, and fills a typical 60 kWh battery from empty in about three hours. That is the ceiling, not a promise. Many drivers see half that rate or less, because the car’s onboard charger, the type of supply and the battery’s state of charge each cap the speed.
Key Takeaways
- At full power, 22 kW adds about 70 to 90 miles of range per hour and fills a 60 kWh battery in roughly three hours.
- The car’s onboard charger is the most common limit; an 11 kW car never draws 22 kW AC.
- A three-phase supply is required for the full rating; single-phase homes see about 7.4 kW.
- Check the car, the supply and the charger setting before assuming a fault.
The numbers at full power
Charging time is energy divided by power. The table uses that arithmetic for common battery sizes. It assumes the car accepts the full rate for the whole session, which real cars rarely do.
| Battery size | Time at 11 kW | Time at 22 kW |
|---|---|---|
| 40 kWh | About 3.6 hours | About 1.8 hours |
| 60 kWh | About 5.5 hours | About 2.7 hours |
| 80 kWh | About 7.3 hours | About 3.6 hours |
For context, the U.S. Department of Transportation puts Level 2 charging at 7 to 19 kW and 10 to 20 miles of range per hour. A 22 kW unit sits above that band because it is a three-phase rating, common in Europe and rare in North American homes, which run on split-phase power instead.
Why your 22 kW charger may only deliver 11 kW
Three limits explain nearly every case of a 22 kW charger running at half speed or less:
- The car’s onboard charger. AC power is converted to DC inside the car. If the onboard charger is rated at 11 kW, the car draws 11 kW from any AC charger, however powerful the charger is. This is the most common reason.
- The supply. A 22 kW rating needs a three-phase supply at 32 A per phase. Fed from a single-phase supply, the same charger typically delivers about 7.4 kW.
- Cable and settings. Some chargers are set to a lower current during installation, and a single-phase charging cable limits even a three-phase car to one phase.
- Battery conditions. The car slows charging as the battery fills and in cold weather, so the last part of a session runs slower than the first.
Our guide to how long charging takes at 7 kW, 11 kW and 22 kW works through full-charge times for each standard rating.
What to check before you blame the charger
Work through these checks in order:
- Read the car’s specification for its maximum AC charging rate, not the DC fast-charging figure.
- Watch the charger display or app mid-session, with the battery near half full. That shows the rate the car is actually accepting.
- Confirm with your installer whether the supply is single-phase or three-phase, and what current the charger was set to.
- Try a different cable if yours is a socket model; cable ratings differ.
If the car and the supply both support 22 kW and the rate is still low, ask the charger manufacturer or a licensed electrician to check the installation.
EVDANCE 22 kW chargers
EVDANCE makes two 22 kW three-phase units. The EV-ACT3204PE wallbox offers a tethered Type 2 cable, with RFID and app control. For sites without a fixed installation, the EV-ACS3205PE portable charger delivers 22 kW from a CEE 32 A outlet and is IP66 rated. Both reach their rating only when the car and the supply allow it.
Frequently Asked Questions
How many miles per hour does a 22 kW charger add?
At full power, about 70 to 90 miles per hour, based on typical consumption of 0.25 to 0.3 kWh per mile. A car limited to 11 kW AC adds roughly half that.
Why does my 22 kW charger show 11 kW?
Usually because the car’s onboard charger is rated at 11 kW. Check the car first, then the supply type and the charger’s current setting.
Is a 22 kW charger twice as fast as an 11 kW charger?
For the same amount of energy, yes on paper. In practice the gain shrinks when the car limits AC intake or the battery tapers the rate near full.
Related Reading
- How Long Does It Take to Charge an EV at 7 kW, 11 kW and 22 kW?
- Single-Phase vs Three-Phase EV Charging: 7kW, 11kW and 22kW Explained
- 11 kW vs 22 kW Wallbox: Which Should Distributors Stock for Europe?
- How Many kW Is a Level 2 Charger?
