GrosskWh
Gross battery capacity is the total physical capacity of the pack before the car reserves protective buffers. It matters because the battery sets the car's range ceiling, charging behaviour, weight, price and long-term risk. Read the number together with chemistry, cooling, usable capacity and warranty.
How to compare it
The gap between gross and usable capacity hints at buffer strategy. Larger buffers can help longevity but reduce advertised usable energy.
- Start with usable capacity, not only gross capacity.
- Connect pack size to consumption and charging curve.
- Read chemistry and warranty before judging long-term value.
What changes it
Battery figures move with pack design, chemistry, buffer size, temperature control and the car maker's software limits.
- Chemistry affects cost, durability, cold behaviour and charging habits.
- Cooling affects fast charging and repeated high-load use.
- Buffers affect usable energy and long-term protection.
Common trap
Gross kWh sounds impressive, but usable kWh is the better range comparison.
- Bigger packs can hide worse efficiency.
- Gross and usable capacity are not interchangeable.
Gross: inside the pack
The useful number is shaped by cell chemistry, hidden buffers, cooling and the warranty strategy.
Gross across EVRadar
Based on 1000 published cars
Lowest
5.4 kWh
Typical
70.9 kWh
Highest
246.8 kWh