Converting an ICE (Internal Combustion Engine) car into an EV (Electric Vehicle)
cost Converting an ICE (Internal Combustion Engine) car into an EV (Electric Vehicle)
sushanta
15 May 2026·3 min read
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Converting an ICE (Internal Combustion Engine) car into an EV (Electric Vehicle) is possible, and many classic cars, hatchbacks, and small SUVs are now being converted successfully in India. The process is called an “EV retrofit” or “EV conversion.”
What Gets Removed
The following ICE parts are removed:
- Engine
- Fuel tank
- Exhaust system
- Radiator
- Clutch system (in some conversions)
What Gets Added
The EV conversion kit usually includes:
- Electric motor
- Battery pack
- Motor controller
- DC-DC converter
- Charging port
- Wiring harness
- Display/BMS (Battery Management System)
Basic Conversion Process
1. Choose the Right Car
Best cars for conversion:
- Small hatchbacks
- Lightweight cars
- Manual transmission cars
Popular choices in India:
- Maruti Suzuki Alto
- Maruti Suzuki WagonR
- Hyundai Santro
2. Decide Battery Range
Typical options:
- 80–120 km → city use
- 150–250 km → daily practical use
Battery chemistry:
- Lithium-ion is most common
3. Motor Selection
Typical motor power:
- 15–30 kW for small cars
- Higher for SUVs
4. Fitment & Fabrication
The workshop:
- Mounts motor to gearbox
- Installs batteries safely
- Adds cooling and wiring
- Tunes controller
5. Registration & Legal Approval
In India, converted EVs need:
- RTO approval
- Updated RC book
- Retrofit certification
Follow rules from Automotive Research Association of India and local RTO guidelines.
Approximate Cost in India
| Type | Cost |
|---|---|
| Small hatchback | ₹3 lakh – ₹6 lakh |
| Sedan/SUV | ₹6 lakh – ₹12 lakh |
Battery size mainly affects price.
Advantages
- Lower running cost
- Quiet driving
- Less maintenance
- Eco-friendly
- Good for city driving
Challenges
- High upfront cost
- Range limitations
- Insurance & RTO paperwork
- Battery weight management
Companies in India Doing EV Conversions
For a business like your automotive platform, EV retrofitting can become a strong future category for:
- Used car upgrades
- Fleet electrification
- Commercial vehicle conversion
- EV consultation services
- EV resale marketplace
Here’s a realistic ICE-to-EV conversion cost breakup for a small car in India like a Maruti Suzuki WagonR or Hyundai Santro.
Small Hatchback EV Conversion Cost
| Component | Approx Cost |
|---|---|
| Lithium-ion battery pack (15–25 kWh) | ₹2,20,000 – ₹4,50,000 |
| Electric motor | ₹60,000 – ₹1,20,000 |
| Motor controller | ₹35,000 – ₹80,000 |
| Battery Management System (BMS) | ₹20,000 – ₹50,000 |
| Charger & charging socket | ₹15,000 – ₹40,000 |
| DC-DC converter | ₹8,000 – ₹20,000 |
| Wiring & connectors | ₹15,000 – ₹35,000 |
| Fabrication & mounting | ₹30,000 – ₹80,000 |
| Cooling system | ₹10,000 – ₹30,000 |
| Suspension/brake upgrades | ₹15,000 – ₹40,000 |
| Labor & tuning | ₹40,000 – ₹1,00,000 |
| Certification & RTO approval | ₹20,000 – ₹60,000 |
Total Estimated Cost
City-use EV (80–120 km range)
₹3 lakh – ₹4.5 lakh
Long-range EV (150–250 km range)
₹5 lakh – ₹8 lakh
Battery alone usually contributes 40–50% of total conversion cost.
Example Budget Setup
For a converted hatchback:
| Specification | Typical Setup |
|---|---|
| Battery | 18 kWh Lithium-ion |
| Motor | 20 kW |
| Range | 120–140 km |
| Top speed | 80–100 km/h |
| Charging time | 4–6 hours |
| Running cost | ~₹1/km |
SUV Conversion Cost
Cars like:
- Mahindra Bolero
- Toyota Innova
can cost:
₹7 lakh – ₹15 lakh because they need:
- Larger battery
- Stronger motor
- Better suspension
- Heavy-duty cooling
Biggest Cost Driver
Battery pricing in India is typically around:
- ₹15,000–₹22,000 per kWh in 2026 depending on chemistry and density.
So:
- 20 kWh battery ≈ ₹3–4 lakh
- 30 kWh battery ≈ ₹4.5–6 lakh
Running Cost Comparison
| Type | Approx Cost/km |
|---|---|
| Petrol car | ₹7–₹12 |
| Diesel car | ₹5–₹8 |
| Converted EV | ₹1–₹2 |
Some Indian EV owners report saving close to ₹2 lakh annually with high monthly usage.
Important Before Conversion
- Not all ICE platforms are suitable
- Weight balance matters
- Cooling and safety are critical
- Insurance approval can be difficult
- RTO certification is mandatory
In India, EV retrofitting is still a niche but growing industry with increasing startup activity and policy interest.