Running Cost Analysis
BYD eMAX 7 Running Cost in Chennai
TNEB slab-based. Cost per km, monthly spend, and savings vs a petrol equivalent.
Your Driving Profile
Per km
₹1.58
Per day
₹63
Per month
₹1,899
Per year
₹23,110
5-Year Savings vs Petrol
₹3,75,985
Petrol equivalent (15 km/l @ ₹101/L): ₹98,307/yr ·BYD eMAX 7: ₹23,110/yr
Monthly saving
₹6,266
Yearly saving
₹75,197
Lifetime (10 yrs)
₹7,51,970
Chennai Electricity Tariffs
- Home AC charging₹7.5/kWh
- Public DC fast₹18/kWh
- Blended rate₹9.60/kWh
- Petrol price₹101/L
BYD eMAX 7 Efficiency
- ARAI range420 km
- Real-world range336 km
- Battery55.4 kWh
- Efficiency0.165 kWh/km
FAQs — BYD eMAX 7 Running Cost in Chennai
How much does it cost to charge BYD eMAX 7 in Chennai?
At Chennai home tariff of ₹7.5/kWh, a full charge from empty costs about ₹416. A 0-80% charge: ₹332.
How much will I save vs a petrol car?
Driving 40 km/day, you'll save approximately ₹6,266/month or ₹75,197/year vs a petrol car doing 15 km/l.
Does DC fast charging cost more?
Yes — DC fast charging in Chennai is about ₹18/kWh vs ₹7.5/kWh at home. Plan daily charging at home and use DC only for travel.
How long will the battery last?
EV batteries typically last 8-12 years with regular use. Most manufacturers offer an 8-year/160,000 km battery warranty covering significant capacity loss.
See all running costs for Chennai
Full TCO: EMI + insurance + maintenance + charging for 5 years.