Dongfeng Box
Charging curve · consumption · motorway range
The Dongfeng Box has 42.3 kWh of usable battery and peaks at 90 kW on a DC charger. In this app's model it uses about 151 Wh/km at a steady 100 km/h and 221 Wh/km at 130, so 46% more energy per kilometre buys you 30 km/h more speed. Weigh that against a 32-minute 10-80% charging stop and you have the whole question of how fast to drive.
- Usable battery
- 42.3 kWh
- Peak DC power
- 90 kW
- 10-80% charge
- 32 min
- Average kW 10-80%
- 56 kW
- Mass, loaded
- 1660 kg
- Top speed
- 150 km/h
DC charging curve
Charging power against state of charge, on a charger fast enough not to be the limit. Peak power is 90 kW, but it has halved by about 64% state of charge. That is why a short stop low down the curve usually beats a long one near the top.
How long a stop takes
| Charge from | Time | Energy added | Average power |
|---|---|---|---|
| 10% to 80% | 32 min | 29.6 kWh | 56 kW |
| 20% to 80% | 29 min | 25.4 kWh | 52 kW |
| 10% to 60% | 18 min | 21.1 kWh | 70 kW |
| 20% to 70% | 21 min | 21.1 kWh | 60 kW |
| 80% to 100% | 37 min | 8.5 kWh | 14 kW |
The curve, point by point
| State of charge | Power |
|---|---|
| 0% | 55 kW |
| 5% | 80 kW |
| 10% | 90 kW |
| 20% | 88 kW |
| 30% | 80 kW |
| 40% | 70 kW |
| 50% | 58 kW |
| 60% | 48 kW |
| 70% | 38 kW |
| 80% | 26 kW |
| 90% | 15 kW |
| 100% | 7 kW |
Consumption and range by cruise speed
Steady motorway cruising on flat road in mild weather, from the fitted model Wh/km = 50 + 0.0101 · v². The “usable range” column is the honest one for trip planning: it is 100% down to 10%, because nobody arrives on empty.
| Cruise speed | Consumption | Range (full pack) | Usable range (100 to 10%) |
|---|---|---|---|
| 90 km/h | 132 Wh/km | 321 km | 289 km |
| 100 km/h | 151 Wh/km | 280 km | 252 km |
| 110 km/h | 172 Wh/km | 246 km | 221 km |
| 120 km/h | 195 Wh/km | 216 km | 195 km |
| 130 km/h | 221 Wh/km | 192 km | 173 km |
| 140 km/h | 248 Wh/km | 171 km | 154 km |
| 150 km/h | 277 Wh/km | 153 km | 137 km |
What the model does not include
- Elevation. The trip planner does account for climbs and descents; the range figures on this page are flat-road, so an alpine route will come out worse than the table.
- Temperature. These are mild-weather numbers. Cold raises consumption and cuts the charging curve. The planner models both. The numbers on this page do not.
- Wind, rain, roof boxes, payload and tyre choice, all of which move real consumption more than most people expect.
- Charger-side limits. The charging times above assume the site can deliver whatever the car asks for. A 150 kW cabinet shared with the car next to you will not.
Where these numbers come from
Approximated from published fast-charge and motorway-consumption tests. Fewer independent runs exist for this model than for the European cars here, so treat the curve — especially above 70% SoC — as indicative. A 42 kWh city car taken on a holiday run: limited to 150 km/h, and the small pack means the stops come round often however gently you drive. Expect the sweep to bottom out low.
What speed should you actually drive?
It depends on your route, on where the fast chargers happen to be and how the legal limits fall. Plan the real trip and the simulator will sweep every cruise speed against this car's curves and tell you which one arrives first.
Plan a trip in the Box