> Noiseless ones means ones that don't use huge diesel generators to meet demand, I assume. No, the noisy part is actively cooling a ton of batteries confined

> Noiseless ones means ones that don't use huge diesel generators to meet demand, I assume. No, the noisy part is actively cooling a ton of batteries confined to a crammed metal box without disturbing neighbors and keeping within the legal noise limits, which is often a very low boundary in highly populated areas for obvious but inconvenient reasons. Rapidly discharging a ton of batteries produces a lot of heat. Frequently overheating batteries will make them degrade more quickly. This quickly ruins the value proposition when TCO depends on so many things (physical design of EV charger and its ventilation, algorithmic design of battery management system, and electrochemical design of cells). > If fast service is required it will have to come down to battery exchanges, or else exchanging whole cars Have you looked outside? That's not how the world currently works. All companies that try to hotswap batteries inside cars are miserable. Real fast-chargers and very fast-charging (800V) cars actually exist. But yeah, besides a lacking charger infrastructure, adding range anxiety to patrolling officers must be the major dealbreaker.