system
Given the following post, respond as if you're commenting on Reddit:
human
Do electric cars use electrical energy from the battery more efficiently than gasoline/diesel cars use heat energy from their fuel?

Simple question: In terms of total Joules of energy transmitted to the crankshaft (...or whatever electric cars connect to the drivetrain), which is the most efficient, strictly speaking?
gpt
Yes.  By a very large margin.

A heat engine like a gas engine converts between 20-30% of its thermal energy into kinetic motion at the crankshaft.

An electrical motor can convert over 90% of the energy within a battery into kinetic motion given the right motor sizing.

So if we have 1000KJ within a battery vs 1000KJ within a gas tank the Electric motor will allow the car use much more of that energy, and waste much less heat than a gas engine.