Running Cost Analysis
BYD Sealion 7 Running Cost in Chennai
TNEB slab-based. Cost per km, monthly spend, and savings vs a petrol equivalent.

Your Driving Profile
Per km
₹1.75
Per day
₹70
Per month
₹2,096
Per year
₹25,500
5-Year Savings vs Petrol
₹3,64,035
Petrol equivalent (15 km/l @ ₹101/L): ₹98,307/yr ·BYD Sealion 7: ₹25,500/yr
Monthly saving
₹6,067
Yearly saving
₹72,807
Lifetime (10 yrs)
₹7,28,070
Chennai Electricity Tariffs
- Home AC charging₹7.5/kWh
- Public DC fast₹18/kWh
- Blended rate₹9.60/kWh
- Petrol price₹101/L
BYD Sealion 7 Efficiency
- ARAI range567 km
- Real-world range454 km
- Battery82.6 kWh
- Efficiency0.182 kWh/km
FAQs — BYD Sealion 7 Running Cost in Chennai
How much does it cost to charge BYD Sealion 7 in Chennai?
At Chennai home tariff of ₹7.5/kWh, a full charge from empty costs about ₹620. A 0-80% charge: ₹496.
How much will I save vs a petrol car?
Driving 40 km/day, you'll save approximately ₹6,067/month or ₹72,807/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.