MG MG4
Charging curve · consumption · motorway range
The MG MG4 has 74.4 kWh of usable battery and peaks at 144 kW on a DC charger. In this app's model it uses about 162 Wh/km at a steady 100 km/h and 235 Wh/km at 130, so 45% more energy per kilometre buys you 30 km/h more speed. Weigh that against a 35-minute 10-80% charging stop and you have the whole question of how fast to drive.
- Usable battery
- 74.4 kWh
- Peak DC power
- 144 kW
- 10-80% charge
- 35 min
- Average kW 10-80%
- 90 kW
- Mass, loaded
- 1985 kg
- Top speed
- 160 km/h
DC charging curve
Charging power against state of charge, on a charger fast enough not to be the limit. Peak power is 144 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% | 35 min | 52.1 kWh | 90 kW |
| 20% to 80% | 32 min | 44.6 kWh | 85 kW |
| 10% to 60% | 20 min | 37.2 kWh | 114 kW |
| 20% to 70% | 23 min | 37.2 kWh | 97 kW |
| 80% to 100% | 41 min | 14.9 kWh | 22 kW |
The curve, point by point
| State of charge | Power |
|---|---|
| 0% | 70 kW |
| 5% | 130 kW |
| 10% | 144 kW |
| 20% | 144 kW |
| 30% | 130 kW |
| 40% | 112 kW |
| 50% | 95 kW |
| 60% | 78 kW |
| 70% | 60 kW |
| 80% | 44 kW |
| 90% | 25 kW |
| 100% | 10 kW |
Consumption and range by cruise speed
Steady motorway cruising on flat road in mild weather, from the fitted model Wh/km = 56 + 0.0106 · 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 | 142 Wh/km | 524 km | 472 km |
| 100 km/h | 162 Wh/km | 459 km | 413 km |
| 110 km/h | 184 Wh/km | 404 km | 363 km |
| 120 km/h | 209 Wh/km | 357 km | 321 km |
| 130 km/h | 235 Wh/km | 316 km | 285 km |
| 140 km/h | 264 Wh/km | 282 km | 254 km |
| 150 km/h | 295 Wh/km | 253 km | 227 km |
| 160 km/h | 327 Wh/km | 227 km | 205 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. SAIC's NMC pack, so a conventional peak-then-taper curve rather than the flat LFP shape. Limited to 160 km/h.
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 MG4