Question 1

How much range will my EV actually have in real-world conditions?

Accepted Answer

Real-world EV range is typically 70-85% of the manufacturer-claimed range. The difference is caused by air conditioning (10-15% range loss), highway speeds above 100 km/h (15-25% loss), hilly terrain (5-15% loss), and cold weather (10-20% loss in winter). In Indian conditions with moderate temperatures and mixed city/highway driving, expect 80-90% of claimed range. Summer heat with full AC can reduce this to 75-80%.

Question 2

What is a good efficiency rating for an EV?

Accepted Answer

For cars, good efficiency is 6-8 km/kWh (125-167 Wh/km), average is 4-6 km/kWh (167-250 Wh/km), and poor is below 4 km/kWh (above 250 Wh/km). Smaller EVs like the Tata Tiago EV achieve 7-8 km/kWh, mid-size like the Nexon EV get 5-7 km/kWh, and larger SUVs get 3-5 km/kWh. EV two-wheelers typically achieve 30-50 km/kWh.

Question 3

How much does it cost to charge an EV at home vs public charger?

Accepted Answer

Home charging at domestic electricity rates costs ₹8-10/kWh in most Indian states, making a full charge of a 30 kWh battery about ₹240-300. Public fast chargers charge ₹15-25/kWh, so the same battery costs ₹450-750. That means home charging costs ₹1-2/km while public charging costs ₹2-4/km. Even at public charger rates, EVs are 3-5x cheaper per km than petrol vehicles.

Question 4

Is it cheaper to buy an EV or petrol car over 5 years?

Accepted Answer

Over 5 years and 60,000 km, an EV typically saves ₹2-4 lakh in running costs compared to a petrol car. Fuel savings of ₹4-5/km add up to ₹2.4-3 lakh. EV maintenance is 40-60% cheaper (no oil changes, fewer brake replacements). However, EVs cost ₹3-6 lakh more upfront. With government subsidies (FAME II, state EV policies), the break-even point is typically 3-4 years for daily commuters driving 40+ km/day.

Question 5

How does temperature affect EV range?

Accepted Answer

Extreme temperatures significantly impact battery performance. In cold weather (below 10°C), range drops 10-20% because the battery needs energy to warm itself and cabin heating uses resistive heaters. In hot weather (above 40°C), air conditioning draws 1-3 kW continuously, reducing range by 10-15%. Indian summers are particularly harsh — EVs in Delhi or Rajasthan may lose 15-20% range in peak summer with AC on full.

Question 6

How long does it take to charge an EV?

Accepted Answer

Charging time depends on the charger type: a standard 3.3 kW home charger takes 8-12 hours for a full charge; a 7.2 kW AC fast home charger takes 4-6 hours; a 25 kW public DC charger takes 1-2 hours; and a 50+ kW rapid charger can give 80% charge in 30-60 minutes. Most EV owners charge overnight at home and only use public chargers on long trips. The 80% threshold matters because charging slows significantly above 80% to protect battery health.

Question 7

How do I maximise my EV range?

Accepted Answer

Drive at moderate speeds (60-80 km/h is optimal for range), use regenerative braking settings on the highest level, pre-condition the cabin while plugged in (heat or cool before unplugging), maintain correct tyre pressure, plan routes to avoid steep hills when possible, and limit highway driving above 100 km/h. In city driving, EVs are actually more efficient than on highways — the opposite of petrol cars — thanks to regenerative braking recovering energy during stops.

EV Range Calculator — Estimate Electric Vehicle Range & Charging Cost