BYD Song Ultra EV 710 electric vehicle exterior

BYD Song Ultra EV 710 - Electric Vehicle Specs

SUV RWD

Power

270 kW

(367 HP)

0-100 km/h

5.5 s

Top Speed

210 km/h

Battery Options

Standard Battery (82 kWh / 81 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: 82 kWh
Net Capacity: 81 kWh
Buffer: 2%
The BYD Song Ultra EV 710 reaches peak charging power of 1500 kW between 10–80% SOC.
It takes 4 min to charge from 10–80% SOC and adds 254 km of real-world highway driving range, representing a 11.2 C‑Rate. This performance is better than 100% in its class.

Average Charging Power

623 kW

Avg C‑rate: 7.7

Maximum Charging Power

1500 kW

At 10 → 11% SOC

Minimum Charging Power

50 kW

0–100% Charging Time

8 min

Charging Curve

State of Charge over Time

SOC Range Charging Time Avg. Power Avg. C-Rate Energy Added
0% → 100% 8 min 622.8 kW 7.69 C 87.0 kWh
0% → 90% 5 min 831.8 kW 10.27 C 78.3 kWh
0% → 80% 4 min 915.1 kW 11.30 C 69.6 kWh
5% → 100% 8 min 616.7 kW 7.61 C 82.7 kWh
5% → 90% 5 min 835.7 kW 10.32 C 74.1 kWh
5% → 80% 4 min 926.5 kW 11.44 C 65.4 kWh
10% → 100% 7 min 597.9 kW 7.38 C 78.4 kWh
10% → 90% 5 min 814.7 kW 10.06 C 69.7 kWh
10% → 80% 4 min 904.1 kW 11.16 C 61.0 kWh