Electric car battery capacity is measured in kilowatt-hours (kWh). The average electric vehicle has a battery capacity of around 40 kWh, but it varies greatly between different car models and can be anything from around 20 kWh to 100 kWh. Why does battery capacity matter for electric vehicles?
Most new electric cars on sale today use battery tech that’s fundamentally the same: hundreds of individual cells packed into modules of pockets to make one large battery.
Like fuel tank sizes, electric car battery pack capacities vary depending on the vehicle. Small EVs like the Chevrolet Bolt EV usually have smaller capacities that range between 60 kWh and 75 kWh. However, there are some exceptions with short-range EVs that have lower capacities ranging between 30 kWh and 40 kWh.
All electric car batteries have a usable capacity that's slightly less than the gross capacity because this helps extend the life of the battery pack. That buffer prevents it from ever being completely charged. For example, the Audi Q8 e-tron's battery pack has a gross capacity of 114 kWh, but its usable capacity is 106 kWh.
Recently announced by CATL that its batteries have a density of over 290Wh/litre for LFP chemistry and over 450Wh/litre for NCM chemistry. Power gives acceleration to the car and maintains it at a given speed. Though mechanically power is the product of torque and rpm.
An Electric Vehicle Battery is a rechargeable energy storage device used to power the electric motors and auxiliary systems in electric vehicles. EV batteries are lithium-ion batteries known for their high energy density and rechargeability.