alt Hacker NewsWould be best to have a modular generator for an EV, that would allow slower but practical charging while on the go or at rest. This would be basically a series hybrid with modular generator, not popular due to lower efficiency AFAIU. Just explicitly design for lower performance when battery critically low and is charging on the go.
These are called EREVs in China and are fairly popular. Ford has a patent for one in trucks but never built it. It makes a ton of sense. Use the generator to get extended range, but avoid all the moving parts of a driveline.