smart #3 Charging Cost in China
By mht-dev, Frontend Engineer & Creator
Estimate the cost and time to charge a smart #3 (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.
smart #3 specifications
- Usable battery capacity
- 47 kWh
- DC fast-charge power (peak)
- 130 kW
- AC charge power (onboard)
- 7.4 kW
- Manufacturer-claimed range
- 415 km (CLTC)
- Realistic range estimate
- 332 km
- Estimated efficiency
- 14 kWh/100 km
- Estimated charging cost per 100 km
- ¥8.49
- 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.
smart #3 charging cost & time
| Scenario | Energy | Time | Cost |
|---|---|---|---|
| Public DC 20% → 80% | 28.2 kWh | 28 minutes | ¥50.76 |
| Public DC 0% → 100% | 47 kWh | 1 hours 11 minutes | ¥84.60 |
| At home (AC) 20% → 80% | 28.2 kWh | 3 hours 49 minutes | ¥16.92 |
smart #3 charging time by charger power
How long the smart #3 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% | 21 hours 22 minutes |
| Home wallbox | 7 kW | 0% → 100% | 6 hours 43 minutes |
| Public AC | 7.4 kW | 0% → 100% | 6 hours 21 minutes |
| DC fast | 130 kW | 10% → 80% | 32 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%) is anchored to a measured charging time for this model, so it reflects the real charging curve. Times still vary with temperature and conditions.
Charging speed
Based on measured data, the smart #3 charges 10% → 80% on DC fast charging in about 32 minutes, peaking at around 130 kW. ev-DB car/2052 (Smart #3 Pro, 47 usable LFP); 32 min 10-80, 130 kW.
The smart #3 is estimated to charge from 20% to 80% on public DC fast charging in about 28 minutes (fast DC).
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 199 km of range for ¥50.76. Driving the same distance on petrol would cost:
| Engine size | Petrol cost | You save |
|---|---|---|
| ≤ 1000 cc | ¥96.96 | ¥46.20 |
| 1000–1500 cc | ¥114.59 | ¥63.83 |
| 1500–2000 cc | ¥141.03 | ¥90.27 |
| 2000–2500 cc | ¥167.48 | ¥116.72 |
| > 2500 cc | ¥202.74 | ¥151.98 |
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 smart #3 from 20% to 80%?
- Charging a smart #3 from 20% to 80% at a public DC fast charger costs about ¥50.76.
How long does it take to charge a smart #3?
- Charging a smart #3 from 20% to 80% at a public DC fast charger takes about 28 minutes.