BYD Seagull 38kWh electric vehicle exterior

BYD Seagull 38kWh - Electric Vehicle Specs

Hatchback

Power

55 kW

(74 HP)

0-100 km/h

13.0 s

Top Speed

130 km/h

Battery Options

Standard Battery (38 kWh / 37 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: 38 kWh
Net Capacity: 37 kWh
Buffer: 4%
The BYD Seagull 38kWh reaches peak charging power of 40 kW between 10–80% SOC.
It takes 43 min to charge from 10–80% SOC and adds 107 km of real-world highway driving range, representing a 1.0 C‑Rate. This performance is better than 0% in its class.

Average Charging Power

28 kW

Avg C‑rate: 0.8

Maximum Charging Power

40 kW

At 13 → 75% SOC

Minimum Charging Power

5 kW

0–100% Charging Time

1 h 25 min

Charging Curve

State of Charge over Time

SOC Range Charging Time Avg. Power Avg. C-Rate Energy Added
0% → 100% 1 h 25 min 27.8 kW 0.75 C 39.8 kWh
0% → 90% 1 h 2 min 34.3 kW 0.93 C 35.8 kWh
0% → 80% 52 min 36.2 kW 0.98 C 31.8 kWh
5% → 100% 1 h 20 min 28.1 kW 0.76 C 37.8 kWh
5% → 90% 57 min 35.4 kW 0.96 C 33.8 kWh
5% → 80% 47 min 37.7 kW 1.02 C 29.8 kWh
10% → 100% 1 h 16 min 28.2 kW 0.76 C 35.8 kWh
10% → 90% 53 min 36.0 kW 0.97 C 31.8 kWh
10% → 80% 43 min 38.8 kW 1.05 C 27.8 kWh