Rolls-Royce Spectre Black Badge Series II - Electric Vehicle Specs
Power
500 kW
(680 HP)
0-100 km/h
4.1 s
Top Speed
250 km/h
Battery Options
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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
Average Charging Power
89 kW
Avg C‑rate: 0.8
Maximum Charging Power
195 kW
At 9 → 30% SOC
Minimum Charging Power
1 kW
0–100% Charging Time
1 h 21 min
Charging Curve
State of Charge over Time
| SOC Range | Charging Time | Avg. Power | Avg. C-Rate | Energy Added |
|---|---|---|---|---|
| 0% → 100% | 1 h 21 min | 88.5 kW | 0.79 C | 120.8 kWh |
| 0% → 90% | 45 min | 142.7 kW | 1.27 C | 108.8 kWh |
| 0% → 80% | 36 min | 159.1 kW | 1.42 C | 96.7 kWh |
| 5% → 100% | 1 h 19 min | 87.0 kW | 0.77 C | 114.8 kWh |
| 5% → 90% | 42 min | 143.4 kW | 1.28 C | 102.7 kWh |
| 5% → 80% | 33 min | 161.3 kW | 1.44 C | 90.7 kWh |
| 10% → 100% | 1 h 17 min | 84.6 kW | 0.75 C | 108.8 kWh |
| 10% → 90% | 40 min | 141.5 kW | 1.26 C | 96.7 kWh |
| 10% → 80% | 31 min | 159.9 kW | 1.42 C | 84.6 kWh |