Xiaomi SU7 Charging Cost in China
By mht-dev, Frontend Engineer & Creator
Estimate the cost and time to charge a Xiaomi SU7 (full battery electric vehicle / BEV) in China, calculated from its battery capacity and local electricity rates, both at public DC fast charging and at home.
Xiaomi SU7 specifications
- Usable battery capacity
- 71 kWh
- DC fast-charge power (peak)
- 220 kW
- AC charge power (onboard)
- 11 kW
- Manufacturer-claimed range
- 700 km (CLTC)
- Realistic range estimate
- 560 km
- Estimated efficiency
- 13 kWh/100 km
- Estimated charging cost per 100 km
- ¥7.61
- Battery chemistry
- LFP
A real-world estimate discounted from the manufacturer's claimed figure; actual distance depends on driving style, speed, and conditions.
Estimated from the realistic range, not a measured consumption figure; actual use varies with driving and conditions.
Xiaomi SU7 charging cost & time
| Scenario | Energy | Time | Cost |
|---|---|---|---|
| Public DC 20% → 80% | 42.6 kWh | 14 minutes | ¥76.68 |
| Public DC 0% → 100% | 71 kWh | 35 minutes | ¥127.80 |
| At home (AC) 20% → 80% | 42.6 kWh | 3 hours 52 minutes | ¥25.56 |
Xiaomi SU7 charging time by charger power
How long the Xiaomi SU7 takes to charge at different charger power levels, capped by its own onboard limits.
| Charger | Power | Charge | Time |
|---|---|---|---|
| Standard outlet | 2.2 kW | 0% → 100% | 32 hours 16 minutes |
| Home wallbox | 7 kW | 0% → 100% | 10 hours 9 minutes |
| Public AC | 11 kW | 0% → 100% | 6 hours 27 minutes |
| DC fast | 220 kW | 10% → 80% | 16 minutes |
AC rows assume constant charging power and a 0% to 100% charge. Real times vary with the onboard charger, temperature, and the charger you use.
The DC fast row (10% to 80%) models the charging curve tapering as the battery fills, so it is more realistic than a flat estimate. Real DC times still vary with temperature, battery state, and the charger.
Charging speed
The Xiaomi SU7 is estimated to charge from 20% to 80% on public DC fast charging in about 14 minutes (ultra-fast DC).
Estimated. Real DC charging slows as the battery fills, so the time varies by model, temperature, and charger.
As of 2026-06-03
Battery care
This car uses an LFP battery, which tolerates routine charging to 100%. Charging full now and then is fine and even helps the car read its charge level accurately.
Savings vs a petrol car
This charge adds about 336 km of range for ¥76.68. Driving the same distance on petrol would cost:
| Engine size | Petrol cost | You save |
|---|---|---|
| ≤ 1000 cc | ¥163.55 | ¥86.87 |
| 1000–1500 cc | ¥193.28 | ¥116.60 |
| 1500–2000 cc | ¥237.89 | ¥161.21 |
| 2000–2500 cc | ¥282.49 | ¥205.81 |
| > 2500 cc | ¥341.96 | ¥265.28 |
Estimated from typical combined fuel use by engine size and Gasoline 92# at ¥8.85/L. Charging at home saves the most; actual figures vary with driving and conditions.
Related vehicles
Compare with another car →Frequently asked questions
How much does it cost to charge a Xiaomi SU7 from 20% to 80%?
- Charging a Xiaomi SU7 from 20% to 80% at a public DC fast charger costs about ¥76.68.
How long does it take to charge a Xiaomi SU7?
- Charging a Xiaomi SU7 from 20% to 80% at a public DC fast charger takes about 14 minutes.