At its 32 A top step, the EV-ACS3210T delivers about 7.7 kW — roughly 26 miles of range per hour for a car using 0.30 kWh per mile, the worked example this card uses throughout. The U.S. DOT puts typical Level 2 charging at 10–20 miles per hour; where your car lands in or outside that band is set by its consumption, not the charger. Miles per hour is arithmetic, never a rating — here is the whole ladder, and how to rescale it.
Key Takeaways
- Miles per hour = the step’s kilowatts divided by your car’s kWh per mile: at the 0.30 example, from about 8 mph at 10 A to about 26 at 32 A.
- The DOT’s typical Level 2 band is 10–20 miles per hour — your car can honestly sit above or below it.
- Rescale with your dashboard consumption; losses and the top-of-pack taper trim the real figure further.
- Stepping down costs time, not energy.
The Card
| Current setting | Power at 240 V | Miles per hour (example car, 0.30 kWh/mile) | Miles in an 8-hour night |
|---|---|---|---|
| 32 A | About 7.7 kW | About 26 | About 205 |
| 24 A | About 5.8 kW | About 19 | About 155 |
| 20 A | About 4.8 kW | About 16 | About 130 |
| 16 A | About 3.8 kW | About 13 | About 100 |
| 12 A | About 2.9 kW | About 10 | About 75 |
| 10 A | About 2.4 kW | About 8 | About 65 |
Every figure is the same division: the step’s power divided by the example consumption, worked from power drawn, before losses. Energy actually stored runs about a tenth lower, and the last part of a charge slows as the battery fills — why charging slows after 80%. Treat the card as a planning figure: close enough to choose a step and predict a morning, not a promise to the mile.
Rescale It for Your Car
Your car’s consumption is on its dashboard. Your miles per hour at any step is that step’s kilowatts divided by your figure:
- A frugal car at 0.25 kWh per mile: the 32 A step gives about 31 miles per hour; the 16 A step about 15.
- A thirstier car at 0.35 kWh per mile: the same steps give about 22 and about 11.
- The charger did not change. Its kilowatts are identical in all three cases — the miles are your car’s translation of them, the point of how many kWh a charge takes.
Cold weather raises a car’s consumption, so the same step returns fewer miles per hour in winter. The kilowatts hold; the translation moves.
Reading the Card Honestly
- Your car can cap the row. If its onboard charger accepts less than the step offers, the car sets the pace — run the division with the accepted power instead.
- The DOT band is a typical range, not a fence. A frugal car on the top step sits above it; the same car stepped down for a small circuit sits inside it. Both are the card working as intended.
- Low steps are for circuit fit, not failure. A 16 A night still returns about 100 miles on the example car — more than most days use, as how many amps a charger needs explains from the circuit side.
The Charger Behind the Card
The EVDANCE EV-ACS3210T is a 32 A NACS portable charger: about 7.7 kW at its top step, a NEMA 14-50P plug, six steps from 10 to 32 A, a 1.77-inch screen that shows the step you picked, an IP66 housing and a 3-year standard warranty. If your car accepts more than 7.7 kW and miles per hour is what you are short of, the step up in the same range is a 48 A wall charger such as the EV-ACT5006T — more kilowatts for the same division, provided circuit and car both take them.
Frequently Asked Questions
Why does my car show fewer miles per hour than the card?
One of four reasons: your consumption is higher than the 0.30 example, your car accepts less than the step offers, the battery is cold, or the session is in the slow top of the pack. Your dashboard figure is the honest one — rescale the card with your own consumption and it will agree.
Does stepping down waste energy?
No. A lower step delivers the same energy per mile, more slowly. The battery takes what it takes; the step only stretches the hours. That is what makes stepping down the right answer on a small circuit rather than a compromise.
Is miles per hour a rating I can compare between chargers?
Only through the kilowatts behind it. Two chargers quoting miles per hour may assume different cars. Compare the power, then run the division with your own consumption — this card is the worked example of doing that.
Related Reading
- How Many kWh Does It Take to Charge an EV?
- How Many Amps Does an EV Charger Need?
- Why Does EV Charging Slow Down After 80%?
- Can You Leave an EV Charging Overnight?
