@Setok @lotneuv depends on the exact configuration, but even then the need for more and higher grade rare metals and rare earth minerals make it more expensive.

Because there isn't any fancy need for charging and discharging controllers on anything from a single-cylinder two-stroke to a supercharged V8 Big Block Diesel.

And the lack of #standardization and #ComponentSharing is driving up the prices as well as reduce the economies of scale, since every car has their own custom batteries!