CUPRA BORN 77 e-BOOST electric vehicle exterior

CUPRA BORN 77 e-BOOST - Electric Vehicle Specs

Hatchback

Power

170 kW

(231 HP)

0-100 km/h

7.0 s

Top Speed

160 km/h

Battery Options

Standard Battery (82 kWh / 77 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: 77 kWh
Buffer: 6%
The CUPRA BORN 77 e-BOOST reaches peak charging power of 125 kW between 10–80% SOC.
It takes 36 min to charge from 10–80% SOC and adds 263 km of real-world highway driving range, representing a 1.2 C‑Rate. This performance is better than 21% in its class.

Average Charging Power

74 kW

Avg C‑rate: 1.0

Maximum Charging Power

125 kW

At 7 → 39% SOC

Minimum Charging Power

28 kW

0–100% Charging Time

1 h 7 min

Charging Curve

State of Charge over Time

SOC Range Charging Time Avg. Power Avg. C-Rate Energy Added
0% → 100% 1 h 7 min 74.0 kW 0.96 C 82.8 kWh
0% → 90% 52 min 84.7 kW 1.10 C 74.5 kWh
0% → 80% 43 min 91.5 kW 1.19 C 66.2 kWh
5% → 100% 1 h 2 min 75.3 kW 0.98 C 78.7 kWh
5% → 90% 48 min 87.4 kW 1.14 C 70.4 kWh
5% → 80% 38 min 95.7 kW 1.24 C 62.1 kWh
10% → 100% 1 h 0 min 74.0 kW 0.96 C 74.5 kWh
10% → 90% 46 min 86.3 kW 1.12 C 66.2 kWh
10% → 80% 36 min 94.8 kW 1.23 C 58.0 kWh