Deep Insights & EV Knowledge
Understand the physics, economics, and metrics behind EV ownership.
Efficiency Impact (Wh/km)
Electric vehicles measure efficiency in Watt-hours per km (Wh/km). A highly efficient EV might consume 120 Wh/km, while a large electric truck might consume 350 Wh/km.
Formula: Range = (Battery Capacity in kWh × 1000) ÷ Efficiency (Wh/km)
Aggressive driving, heating (HVAC), and extreme cold can increase consumption by 30-40%, drastically reducing your maximum range.
Battery Technology & Degradation
Most modern EVs use one of two main battery chemistries, which dictate how you should charge them:
- LFP (Lithium Iron Phosphate):
Used in cars like the Tesla Model 3 RWD, BYD Blade, and Tata Nexon. LFP is incredibly durable, safe, and can be charged to 100% regularlywithout significant degradation. Lifespan is often >3000 cycles. - NMC/NCA (Nickel Manganese Cobalt):
Used in premium or long-range EVs. They charge faster and have higher energy density, but should ideally be kept between 20% to 80% for daily use to prevent premature degradation.
Charging Speeds (0-100%)
Charging time is determined by your EV's On-Board Charger (OBC) limit, the external charger's output, and the charging curve.
- 3.3kW (Portable AC): Slowest (Overnight)
- 7.2kW / 11kW (Wallbox AC): Standard (6-8 hrs)
- 50kW - 150kW (DC Fast): Fast (30-60 mins)
- 250kW+ (DC Ultra-Fast): Hyper (15-20 mins)
ICE Fuel Cost Comparison
How does EV charging compare to internal combustion engines (ICE)?
- Petrol/Diesel (15-20km/l): Usually high running cost, subject to global oil prices.
- CNG (25km/kg): Cheaper than petrol, but requires frequent refills and sacrifices boot space.
- Strong Hybrid (22-25km/l): Highly efficient in city traffic, runs on petrol.
- EV Home Charging: The cheapest option by far, costing a fraction of ICE vehicles.
- EV Public Fast Charging: More expensive than home charging, approaching the cost of efficient ICE vehicles in some regions.