[irjustin]

Realistically, this is a pipe dream. China has had a few that are trying this NIO being the most well known.

To me, it's not really viable. The 3 main problems are - The extra costs in a vehicle to allow swapping within say 5 minutes is non-trivial. The physical space required to house X number of batteries ready, X number swap ready is a lot at any moderate volume. Last, Batteries are not universal and now you're constricting either the design of all cars or you have to go to a specific swap station that houses your battery, related to the physical space. I would not accept a battery w/ less volume.

Time will tell if I'm wrong; NIO might do it, but I'm a naysayer for sure.

[maxglute]

> NIO might do it

The main obstacle is battery swap is capex heavy, hence PRC might do it, but most other places, less likely. It's pretty easy to extrapolate PRC auto parking / self driving cars sneaking out during low congestion to hit their battery swap queue. But that is a fairly significant logistics / infra issue when most countries would be lucky to get sufficient fast charging piles in place. Battery volume is probably not an issue since batteries will be rentals for minimum XYZ capacity. And algo might eventually bid for price, i.e. discount rental for partial charge if it means your car go for a swap by itself a couple days earlier.

[vegardstenvik]

NIO has a battery swap station in my city in Trondheim, Norway. It has not been that popular. You might say that installing a fast charger is complex and costly, but a battery swapping station is also very costly and complex. The difference is that you can put out more fast charging stations at various locations. This means that you often have to choose between driving 20 minutes to a battery swapping station to do a 5 minute swap, or drive 5 minutes to do a 20 minute fast charge. The added complexity of a swapping station just is not worth it.

[jychang]

Would you do it if it was cheaper per kwh? Say you have an EV where any battery you get from the swap station is better than 90% degradation, and you pay $0.40 per kwh for the electricity in the battery- but you get the option to take a battery between 80% and 90% degradation, in which case you get the battery all filled up, but only pay $0.35 per kwh for the electricity in that battery.