One charge: how long, and how much?
Pick the vehicle, choose which percentages to charge between, then enter the station's power and rate. The result updates instantly, and the link can be shared with your exact figures.
Charging 60% of the battery means putting in 37,3 kWh, taking 19 min – 30 min, and costing ¥69.98.
- The catalogue does not record this vehicle's maximum charging power, so the figure above assumes the full station power is accepted. If the vehicle's limit is lower, it takes longer.
- The time is a range, not a single figure: the power actually flowing depends on each vehicle's charging curve, the battery's temperature, and how many other vehicles share the same station.
- What you pay is more than what enters the battery: some energy becomes heat. This calculation uses 96% efficiency for DC charging, and that is an estimate — the catalogue has no figure for it.
Worked examples
Worked examples: charging 20–80% at a 120 kW DC fast charger at ¥1.80/kWh. The figures come from the same function as the form above — pick a vehicle to recalculate.
| Vehicle | Energy in | Time | Cost |
|---|---|---|---|
| Xiaomi SU7 | 43,8 kWh | 23 min – 35 min | ¥82.13 |
| XPeng P7+ | 44,9 kWh | 23 min – 36 min | ¥84.26 |
| BYD Seal | 49,5 kWh | 26 min – 40 min | ¥92.81 |
Charging FAQs
Why is charging time a range, not one number?
Because DC power drops past 80% and varies with battery temperature and how many cars share the post. One number would pretend a certainty that doesn't exist.
Per kWh or per minute?
Most operators bill per kWh; some add service fees and idle fees for staying plugged in after finishing. The app always shows the terms before you plug in.
What are idle fees?
Fines for staying plugged in after charging finishes — move the car when the app says it's done.
Is home charging really cheaper?
Yes — about ¥0.60 per kWh nationally versus ¥1.00–1.80 at public fast chargers. A 73 kWh fill-up costs roughly ¥44 at home, ¥73–131 on the road.
What's not counted here
- Charging time is always a range, and that is deliberate. Nameplate power rarely flows the whole way: every vehicle charges differently, a cold or overheated battery charges slower, and one station shared by two cars splits its power.
- The battery capacity in the catalogue is a gross figure. Part of it is never used to protect cell life, so “0%” on the car's screen is not an empty battery.
- The equivalent range is derived from factory claims (WLTP/NEDC). On real roads it is almost always shorter — shorter still on motorways, in rain, or with the air conditioning running flat out.
- Charging rates differ between operators and may include service charges or their own parking tariff, which are not counted here. The default figure is an estimate; replace it with what is actually listed.