Electric car battery is more expensive then combustion engine battery. Cause there`s a big difference. Therefore, a regular car battery doesn`t drive the car. Because, regular car battery starts the car and electric car battery drive the car.
The main purpose of the battery for an electric car is using as the primary energy source for propulsion. It needs a high energy density. The regular battery is used to start an internal combustion engine provides a large amount of current for a short period and will be immediately recharged.
You would need 75 of the ICE car batteries to replace electric car battery.
The EV battery has a significantly higher power capacity to give both a higher voltage and greater power over sustained periods.
A regular car battery is about 500 watt-hours in comparison with an electric car battery, which has up to 100,000 w hours. This 24kW battery is near $3,600.
What is really only thing for these batteries is that they are batteries. However, they are incompatible and incomparable.