Four performance claims. Three have zero published boundary conditions. Before treating any 2026 SU7 performance claim as an operational specification, three verification gates must clear. Gate 1 must be answered before any other evaluation begins.
Gate 1: Xiaomi Supercharger Within 5 km
Is there a Xiaomi supercharging station within 5 km of your primary operating base, with at least 2 operational guns per station to avoid queueing?
If no: the 12-minute charging claim and the 670 km / 15-minute claim are not your operational figures. The entire 897V performance premise is infrastructure-dependent. Stop evaluation here until Gate 1 clears.
If yes: proceed to Gate 2.
You can verify Gate 1 today. Open the Xiaomi charging app and check station locations against your operating base. That single check changes the entire calculation.
Gate 2: Highway Route Coverage
For highway-dependent operations: is the entire route covered by Xiaomi supercharging stations at intervals of 150 km or less?
Plan routes on verified data, not official claims:
- 327 km at 85 km/h [V — Yiche independent test, 0-10C]
- 540-630 km at 110-120 km/h cruising speed [I — engineering inference, ~20C]
Do not plan routes on the 902 km CLTC figure. That number describes a lab protocol at 28 km/h average, not your highway driving profile.
Gate 3: Cold Climate Operations
Does your operating environment regularly reach below -10C?
If yes: obtain independent cold-weather charging and range data before fleet commitment. Xiaomi completed an internal -39C operational test in February 2026 [V — Dongchedi], confirming the vehicle operates in extreme cold. Charging speed under that condition was not disclosed.
Engineering inference for -20C range: approximately 350-470 km [I]. This is a planning reference, not a commitment-grade number. Independent third-party cold-weather test expected Q3-Q4 2026 (Monitoring Trigger T3).
Do not use the 350-470 km inference for procurement commitment. Wait for T3.
Decision Framework by Scenario
| Scenario | Key Data | Decision |
|---|---|---|
| Urban Tier-1/2 + confirmed Xiaomi supercharger | 897V confirmed. 12-min pending. Yiche 785 km. | VIABLE NOW |
| Highway routes | 327 km at 85 km/h [V]. 540-630 km at cruise [I]. | ROUTE VERIFY |
| Cold climate (regular sub-zero) | T3 pending Q3-Q4. 350-470 km inference only. | WAIT FOR T3 |
Key Monitoring Triggers for Fleet Operators
The complete audit covers all four challenge points, six monitoring triggers, and full data appendix with 24 primary data points and 11 known data gaps.
Xiaomi SU7 (2026) Charging Performance Audit
Full 30+ page report -- four challenge points, C-rate analysis, range planning parameters, procurement gate framework, six monitoring triggers. Data cutoff March 28, 2026.