Data shown is approximate and based on publicly available specifications and real-world estimates. Actual performance varies with driving conditions, temperature, state of charge, and charger hardware. Always check your vehicle's manual for official specifications. EVcourse is not affiliated with any vehicle manufacturer.
Quick verdict
The Alfa Romeo Junior Elettrica charges faster with a peak of 100 kW DC, while the Alfa Romeo Junior Elettrica is more efficient at 159 Wh/km. The BYD ATTO 3 offers more WLTP rated range at 420 km.
Side-by-Side Specs
| Spec | Alfa Romeo Junior Elettrica | BYD ATTO 3 |
|---|---|---|
| Battery (approx.) | ~51 kWh | ~60.5 kWh |
| WLTP range (rated) | ~400 km | ~420 km |
| Efficiency (approx.) | ~159 Wh/km | ~183 Wh/km |
| Max DC charging | up to 100 kW | up to 89 kW |
| 10-80% charge time (approx.) | ~27 min | ~38 min |
| Max AC charging | up to 11 kW | up to 11 kW |
| DC connector | CCS2 | CCS2 |
Charging Speed
The Alfa Romeo Junior Elettrica has a peak DC charging speed of 100 kW, which is roughly 12% faster than the BYD ATTO 3 at 89 kW. In practice, peak speed only tells part of the story. The charging curve, battery temperature, and state of charge all affect how quickly your car actually charges.
For the 10-80% charge (the most common DC fast charging scenario), the Alfa Romeo Junior Elettrica finishes in about 27 minutes, which is 11 minutes quicker than the BYD ATTO 3 at 38 minutes. On a road trip, that difference adds up over multiple stops.
Range and Efficiency
The BYD ATTO 3 has a WLTP rated range of approximately 420 km, which is roughly 20 km more than the Alfa Romeo Junior Elettrica at approximately 400 km. WLTP is a standardized lab test. Expect your actual range to be lower, varying with speed, weather, terrain, and driving style.
Efficiency matters more than battery size for daily driving costs. The Alfa Romeo Junior Elettrica consumes 159 Wh/km, compared to 183 Wh/km for the BYD ATTO 3. That means the Alfa Romeo Junior Elettrica uses less energy per kilometer, which translates to lower charging costs and fewer charging stops on longer drives.
A more efficient car does not always mean more range. Battery size plays a role too. The BYD ATTO 3 has approximately 60.5 kWh of useable battery , while the Alfa Romeo Junior Elettrica has approximately 51 kWh.
Which One Should You Choose?
If fast charging speed is your priority, the Alfa Romeo Junior Elettrica wins on both peak power (up to 100 kW) and time at the plug (approximately 27 minutes from 10-80%). For long road trips with multiple charging stops, that faster turnaround makes a real difference.
Both cars support 11 kW AC charging, so home and workplace charging speeds will be similar.
If you mostly charge at home or at work and care more about daily driving costs, the Alfa Romeo Junior Elettrica is the more efficient choice at 159 Wh/km. Lower consumption means lower electricity bills over time.
For maximum range between charges, the BYD ATTO 3 has a WLTP rated range of approximately 420 km, which is roughly 20 km more. Both are capable EVs. The best choice depends on how you charge and how far you drive.
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From Finn, engineer: Charging specs alone do not tell the full story. Real-world charging speed depends on battery temperature, state of charge, and the charger itself. These comparisons use manufacturer-published data. Approximate values only.
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