Hyundai IONIQ Electric 28 kWh electric vehicle exterior
Discontinued

Hyundai IONIQ Electric 28 kWh - Electric Vehicle Specs

Hatchback FWD

Power

88.000 kW

(119 HP)

Battery Options

Standard Battery (30 kWh / 28 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: 30 kWh
Net Capacity: 28 kWh
Buffer: 8%
The Hyundai IONIQ Electric 28 kWh reaches peak charging power of 69 kW between 10–80% SOC.
It takes 24 min to charge from 10–80% SOC and adds 105 km of real-world highway driving range, representing a 1.8 C‑Rate. This performance is better than 83% in its class.

Average Charging Power

20 kW

Avg C‑rate: 0.7

Maximum Charging Power

69 kW

At 2 → 51% SOC

Minimum Charging Power

1 kW

0–100% Charging Time

1 h 32 min

Charging Curve

State of Charge over Time

SOC Range Charging Time Avg. Power Avg. C-Rate Energy Added
0% → 100% 1 h 32 min 19.6 kW 0.70 C 30.1 kWh
0% → 90% 41 min 38.8 kW 1.39 C 27.1 kWh
0% → 80% 27 min 52.4 kW 1.87 C 24.1 kWh
5% → 100% 1 h 30 min 18.9 kW 0.68 C 28.6 kWh
5% → 90% 40 min 37.9 kW 1.35 C 25.6 kWh
5% → 80% 26 min 51.7 kW 1.85 C 22.6 kWh
10% → 100% 1 h 29 min 18.2 kW 0.65 C 27.1 kWh
10% → 90% 39 min 36.8 kW 1.32 C 24.1 kWh
10% → 80% 24 min 50.8 kW 1.81 C 21.1 kWh