Real-World Mileage Report
BYD eMAX 7 Mileage in Chennai
Real-world range, city vs highway efficiency, weather impact, and cost per km.
Range by Season
AC usage drains battery — keep cabin pre-cooled while plugged in
ARAI Claimed
420 km
Lab-tested, ideal conditions
Real-World Average
315 km
In Chennai summer
Highway (80-100 km/h)
294 km
High-speed expressway
Running Cost in Chennai
City vs Highway
Common Questions
What is the real-world mileage of BYD eMAX 7 in Chennai?
In Chennai, the BYD eMAX 7 delivers around 315 km real-world range per full charge (current season: summer). City driving: ~349 km, Highway: ~294 km.
Why is real-world range less than claimed 420 km?
ARAI testing uses ideal conditions. Real-world factors — AC usage, traffic, driving style, terrain, weather, and road conditions — typically reduce range to 75-90% of the claimed figure.
How much does charging cost per km in Chennai?
At ₹8/kWh electricity tariff, the BYD eMAX 7 costs about ₹1.41/km — roughly 82% cheaper than a petrol car.
Does AC usage reduce range?
Yes — AC can reduce range by 10-20%. Pre-cool your car while plugged in to minimize the impact when driving.
Is highway range worse than city range?
Typically yes. EVs are most efficient at 40-60 km/h. Highway speeds of 80-100+ km/h increase aerodynamic drag and reduce range by 10-20%.
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