MG MG4 Electric Extended Range electric vehicle exterior

MG MG4 Electric Extended Range - Electric Vehicle Specs

Crossover

Power

150 kW

(204 HP)

0-100 km/h

7.9 s

Top Speed

160 km/h

Battery Options

Standard Battery (77 kWh / 74 kWh)

Charging Curve & Charging Speed Analysis

Understanding Charging Performance

Charging performance isn't just about peak power—it's about sustained power across the entire charging curve. A vehicle that maintains 150kW from 10-80% SOC will charge faster than one that peaks at 250kW but quickly drops to 100kW after 20% SOC. The shape of the curve matters more than the highest peak power.

The key metric is C-rate, which accounts for both charging power and battery capacity. A C-rate of 2.0 means the battery can theoretically charge from 0-100% in 30 minutes, while 1.0 C-rate equals 60 minutes. This makes it easy to compare vehicles regardless of battery size.

Charging Curve Shape

Flat, sustained power across a wide SOC range beats high peaks that quickly taper off. Look for vehicles that maintain high power from 10-80% SOC.

C‑Rate & Timing

C-rate normalizes charging speed across different battery sizes. Higher C-rates mean shorter charging times and more flexible road trip planning.

Battery Options

Gross Capacity: 77 kWh
Net Capacity: 74 kWh
Buffer: 3%
The MG MG4 Electric Extended Range reaches peak charging power of 139 kW between 10–80% SOC.
It takes 33 min to charge from 10–80% SOC and adds 255 km of real-world highway driving range, representing a 1.4 C‑Rate. This performance is better than 23% in its class.

Average Charging Power

47 kW

Avg C‑rate: 0.6

Maximum Charging Power

139 kW

At 19 → 53% SOC

Minimum Charging Power

6 kW

0–100% Charging Time

1 h 42 min

Charging Curve

State of Charge over Time

SOC Range Charging Time Avg. Power Avg. C-Rate Energy Added
0% → 100% 1 h 42 min 46.6 kW 0.63 C 79.9 kWh
0% → 90% 51 min 83.6 kW 1.12 C 72.0 kWh
0% → 80% 38 min 99.8 kW 1.34 C 64.0 kWh
5% → 100% 1 h 39 min 45.9 kW 0.62 C 76.0 kWh
5% → 90% 48 min 84.7 kW 1.14 C 68.0 kWh
5% → 80% 34 min 102.9 kW 1.38 C 60.0 kWh
10% → 100% 1 h 37 min 44.3 kW 0.59 C 71.9 kWh
10% → 90% 46 min 82.9 kW 1.11 C 64.0 kWh
10% → 80% 33 min 101.4 kW 1.36 C 56.0 kWh