Lexus UX 300e electric vehicle exterior

Lexus UX 300e - Electric Vehicle Specs

Crossover

Power

150 kW

(204 HP)

0-100 km/h

7.5 s

Top Speed

160 km/h

Battery Options

Standard Battery (71 kWh / 64 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: 71 kWh
Net Capacity: 64 kWh
Buffer: 10%
The Lexus UX 300e reaches peak charging power of 50 kW between 10–80% SOC.
It takes 1 h 31 min to charge from 10–80% SOC and adds 130 km of real-world highway driving range, representing a 0.5 C‑Rate. This performance is better than 0% in its class.

Average Charging Power

20 kW

Avg C‑rate: 0.3

Maximum Charging Power

50 kW

At 8 → 20% SOC

Minimum Charging Power

6 kW

0–100% Charging Time

3 h 28 min

Charging Curve

State of Charge over Time

SOC Range Charging Time Avg. Power Avg. C-Rate Energy Added
0% → 100% 3 h 28 min 19.8 kW 0.31 C 68.8 kWh
0% → 90% 2 h 28 min 24.9 kW 0.39 C 61.9 kWh
0% → 80% 1 h 42 min 32.3 kW 0.50 C 55.0 kWh
5% → 100% 3 h 22 min 19.4 kW 0.30 C 65.4 kWh
5% → 90% 2 h 22 min 24.6 kW 0.38 C 58.5 kWh
5% → 80% 1 h 36 min 32.2 kW 0.50 C 51.6 kWh
10% → 100% 3 h 17 min 18.8 kW 0.29 C 61.9 kWh
10% → 90% 2 h 18 min 23.9 kW 0.37 C 55.0 kWh
10% → 80% 1 h 31 min 31.6 kW 0.49 C 48.2 kWh