Xiaomi YU7 Max achieves nearly 500 kilometres on highway range test, falls short of official claims

The Xiaomi YU7 Max, equipped with a 101.7 kWh battery and dual motors, recently underwent an independent range test, demonstrating a highway cruising range of nearly 500 kilometres. The test revealed a discrepancy between its real-world performance and Xiaomi’s official CLTC (China Light-Duty Vehicle Test Cycle) rating.

The test was conducted by Chinese media Sohu. The vehicle used for the test was a newly delivered YU7 Max, featuring 21-inch wheels and Michelin Primacy 5 Energy tires. Its official CLTC range is stated as 750 kilometres.

The test conditions

• Vehicle Settings: Comfort power mode, low kinetic energy recovery, air conditioning set to 23-24°C (73-75°F ) with two fan speeds. Tire pressure was set to 2.9 bar (42 psi) according to the vehicle’s half-load standard.
• Route: The test was conducted entirely on highways, forming an 84-kilometre loop.
• Driving Style: The vehicle was driven at the speed limit by two occupants, carrying necessary photographic equipment, simulating a half-load condition.
• Temperature: The test day saw a maximum temperature of approximately 30°C (86°F), more favourable than previous tests conducted in nearly 40°C (104°F) conditions.

Range performance

The YU7 Max travelled 483 kilometres on the highway before its displayed range reached zero. The average speed during this segment was 99.6 km/h (62 mph).

The highway range achievement rate was 64.4% when compared to the 750-kilometre CLTC rating. According to Sohu, this figure is considered average among tested vehicles but falls short of Xiaomi’s claimed 80-90% achievement rates.

The YU7 Max managed to travel an additional 9 kilometres before completely shutting down. The total “dead-on-the-road” range was 492 kilometres, resulting in a final achievement rate of 65.5%.

Charging and energy consumption

Using a supercharging station with a maximum current of 400A and supporting up to 1000V at 400kW, the vehicle charged from 0% to 100% in 37 minutes, with an average power of 176.3 kW. The charging power remained stable at 300 kW between 5% and 70% battery, completing this segment in 14 minutes. The vehicle entered trickle charging mode after reaching 90% battery.

Energy consumption data varied: the in-car display showed 20.2 kWh/100 km, while calculations based on battery capacity yielded 20.6 kWh/100 km. User-side energy consumption, based on the 108.70 kWh charged, was 22.1 kWh/100 km, higher than the in-car display indicated.

Editor’s comment

In a previous interview, Xiaomi’s CEO Lei Jun claimed he personally drove the standard version of the YU7 1300 kilometres (800 miles) from Beijing to Shanghai with only one stop for charging. The standard version has a CLTC range of 835 kilometres (519 miles). To cover the total distance of 1300 kilometres (800 miles) with just one charge stop, the vehicle would need to achieve a range efficiency close to 80%.

Source: Sohu