BYD Dolphin 44.9kWh Boost electric vehicle exterior

BYD Dolphin 44.9kWh Boost - Electric Vehicle Specs

Hatchback

Power

130 kW

(176 HP)

0-100 km/h

7.0 s

Top Speed

160 km/h

Battery Options

Standard Battery (46 kWh / 44 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: 44 kWh
Buffer: 2%
The BYD Dolphin 44.9kWh Boost reaches peak charging power of 70 kW between 10–80% SOC.
It takes 38 min to charge from 10–80% SOC and adds 147 km of real-world highway driving range, representing a 1.2 C‑Rate. This performance is better than 12% in its class.

Average Charging Power

44 kW

Avg C‑rate: 1.0

Maximum Charging Power

70 kW

At 5 → 31% SOC

Minimum Charging Power

16 kW

0–100% Charging Time

1 h 6 min

Charging Curve

State of Charge over Time

SOC Range Charging Time Avg. Power Avg. C-Rate Energy Added
0% → 100% 1 h 6 min 43.8 kW 0.97 C 48.3 kWh
0% → 90% 52 min 50.0 kW 1.11 C 43.4 kWh
0% → 80% 43 min 53.7 kW 1.20 C 38.6 kWh
5% → 100% 1 h 3 min 43.3 kW 0.96 C 45.9 kWh
5% → 90% 49 min 49.7 kW 1.11 C 41.0 kWh
5% → 80% 40 min 53.5 kW 1.19 C 36.2 kWh
10% → 100% 1 h 1 min 42.4 kW 0.94 C 43.5 kWh
10% → 90% 47 min 48.9 kW 1.09 C 38.6 kWh
10% → 80% 38 min 52.8 kW 1.18 C 33.8 kWh