Every EV brochure leads with a big range number, and almost every owner quietly discovers that the car does not quite deliver it. This is not a scandal or a defect — it is how standardised testing works everywhere in the world. The ARAI or MIDC figure is a lab result measured under gentle, repeatable conditions, and Indian roads, speeds, and summers are anything but gentle. Understanding the gap turns range anxiety into range planning, and once you can estimate your true range, EV ownership stops feeling like a guessing game.
How the ARAI test cycle works — and why it overstates range
The Indian rating comes from the MIDC cycle, a modified version of an older European test. It runs the vehicle through a fixed pattern of low average speeds, gentle acceleration, and no climate-control load, on a rolling dynamometer in a controlled environment. Because it never sustains highway speeds and never runs the AC, it produces an optimistic, best-case number that few owners will match on a real drive.
That is the heart of the gap: the test measures efficiency in conditions that flatter an EV, then publishes that as a single headline figure. If the underlying jargon — kWh, efficiency, energy density — feels unfamiliar, our EV learn hub and the deeper battery primer unpack the terms so the rest of this makes sense.
The realistic discount to apply
As a rule of thumb, plan for about 70–80% of the claimed ARAI range in normal mixed driving. The figure lands at the lower end — sometimes below it — when you sit at sustained highway speeds with the air-conditioning running hard. So a car rated at, say, 400 km on ARAI is realistically a 280–320 km car in everyday use, and perhaps less on a fast summer highway run.
Applying this discount before you buy keeps your expectations honest. It is also why we urge first-time buyers in the first-EV checklist to size the battery to real usage rather than to the brochure. The brochure is a starting point, not a promise.
Heat and AC load in a 40–45°C summer
India's summers are uniquely tough on EV range. When the cabin needs to be cooled from a baking 45°C down to comfortable, the air-conditioning draws meaningful power, and the battery's own thermal management adds to the load. The result is that the same car returns noticeably less range in peak summer than it does in pleasant winter weather.
You can soften the hit by pre-cooling the cabin while still plugged in, parking in shade, and using recirculation. Heat affects the pack over the long term too, which is why our guide to EV battery life in Indian weather is worth reading alongside this — short-term range loss and long-term degradation both trace back to temperature.
The driving factors you control
Beyond the weather, your own habits move the range needle more than most people realise. The biggest levers are within your control:
- Speed — drag rises sharply above 80 km/h, so a steady cruise stretches range far more than a fast one.
- Payload — a fully loaded car with luggage and passengers uses more energy per km.
- Tyre pressure — under-inflated tyres quietly bleed range; keep them at the recommended value.
- Regenerative braking — letting the car recover energy in stop-go traffic adds usable kilometres.
- Charging habit — sticking to a 20–80% window most days is gentler on the battery than routinely running 0–100%.
None of these require sacrifice — a smoother right foot and correct tyre pressure alone can recover a chunk of the gap between the brochure and your dashboard.
City versus highway — the EV surprise
Here is the counter-intuitive part for anyone coming from petrol. An EV is actually more efficient in slow, stop-go city traffic than on the open highway — the exact opposite of a combustion car. In the city, regenerative braking recovers energy every time you slow down, and low speeds mean low aerodynamic drag. On the highway, sustained high speed means constant drag and no regen, so range falls.
This is why your dashboard range can look great around town and then drop faster than expected on a motorway. It also reframes how you plan trips: city errands are cheap on range, long fast highway legs are where you watch the battery and lean on the public network. You can compare EVs on their city versus highway efficiency to see which models hold up best at speed.
How to estimate your true range and plan with a buffer
Put it all together and a simple method emerges. Take the ARAI figure, apply your 70–80% discount, trim a little more for peak summer or sustained highway speed, and then keep a safety buffer of 15–20% so you never arrive at a charger on empty. That buffer is the difference between relaxed driving and anxious math.
For specific trips, use the range estimator in the EV tools to model your route and conditions instead of guessing. On long drives, pair that estimate with our guide to India's charging infrastructure so you know where the chargers are. And because home charging removes the daily range question entirely, our home charging guide is the other half of relaxed ownership.
Monsoon and cold-weather notes
Two seasonal cases round out the picture. In the monsoon, headlights, wipers, demist, and wet roads all add a little drag and draw, so expect a modest dip below your summer estimate. In genuinely cold conditions — think a Himalayan winter run — both range and charging speed drop more sharply because cold batteries are less willing to give up and accept energy. In those situations, plan extra-conservatively and keep that buffer generous.
A well-balanced model like the Mahindra BE 6 with a larger pack gives you more headroom for these conditions, which is exactly why sizing the battery to your real-world needs — not the lab number — is the most important range decision you will make.