BMW iX xDrive45 electric vehicle exterior

BMW iX xDrive45 - Electric Vehicle Specs

SUV

Power

300 kW

(408 HP)

0-100 km/h

5.1 s

Top Speed

200 km/h

Battery Options

Standard Battery (100 kWh / 94 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: 100 kWh
Net Capacity: 94 kWh
Buffer: 5%
The BMW iX xDrive45 reaches peak charging power of 175 kW between 10–80% SOC.
It takes 30 min to charge from 10–80% SOC and adds 275 km of real-world highway driving range, representing a 1.5 C‑Rate. This performance is better than 57% in its class.

Average Charging Power

112 kW

Avg C‑rate: 1.2

Maximum Charging Power

175 kW

At 7 → 42% SOC

Minimum Charging Power

5 kW

0–100% Charging Time

54 min

Charging Curve

State of Charge over Time

SOC Range Charging Time Avg. Power Avg. C-Rate Energy Added
0% → 100% 54 min 111.8 kW 1.18 C 101.9 kWh
0% → 90% 43 min 127.9 kW 1.35 C 91.7 kWh
0% → 80% 34 min 140.0 kW 1.48 C 81.5 kWh
5% → 100% 51 min 112.4 kW 1.19 C 96.8 kWh
5% → 90% 40 min 129.9 kW 1.37 C 86.7 kWh
5% → 80% 31 min 143.7 kW 1.51 C 76.5 kWh
10% → 100% 49 min 110.5 kW 1.17 C 91.8 kWh
10% → 90% 38 min 128.1 kW 1.35 C 81.6 kWh
10% → 80% 30 min 142.3 kW 1.50 C 71.4 kWh