BYD Dolphin Surf Boost electric vehicle exterior

BYD Dolphin Surf Boost - Electric Vehicle Specs

Hatchback FWD

Power

65 kW

(88 HP)

0-100 km/h

12.1 s

Top Speed

150 km/h

Battery Options

Standard Battery (46 kWh / 43 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: 46 kWh
Net Capacity: 43 kWh
Buffer: 6%
The BYD Dolphin Surf Boost reaches peak charging power of 85 kW between 10–80% SOC.
It takes 32 min to charge from 10–80% SOC and adds 163 km of real-world highway driving range, representing a 1.4 C‑Rate. This performance is better than 40% in its class.

Average Charging Power

20 kW

Avg C‑rate: 0.5

Maximum Charging Power

85 kW

At 0 → 58% SOC

Minimum Charging Power

2 kW

0–100% Charging Time

2 h 20 min

Charging Curve

State of Charge over Time

SOC Range Charging Time Avg. Power Avg. C-Rate Energy Added
0% → 100% 2 h 20 min 19.9 kW 0.46 C 46.4 kWh
0% → 90% 1 h 4 min 39.1 kW 0.91 C 41.8 kWh
0% → 80% 35 min 62.8 kW 1.46 C 37.1 kWh
5% → 100% 2 h 18 min 19.1 kW 0.44 C 44.1 kWh
5% → 90% 1 h 2 min 37.9 kW 0.88 C 39.5 kWh
5% → 80% 33 min 61.8 kW 1.43 C 34.8 kWh
10% → 100% 2 h 16 min 18.3 kW 0.42 C 41.8 kWh
10% → 90% 1 h 0 min 36.7 kW 0.85 C 37.2 kWh
10% → 80% 32 min 60.6 kW 1.40 C 32.5 kWh