"Still doesn’t answer the question of how long it...

"Still doesn’t answer the question of how long it lasts?"

Existing battery for CPx and VS2 is 60V/45Ahr which equates to 2.7kWhr (a simple multiplication). The VS2 carries 1 battery and the CPx has 2. So if the new battery is 2.2kWhr then it will last 2.2/2.7 = 81.5% as long. All other things being equal, the new battery will give a corresponding reduced range.

The actual range depends on many other factors of course. I expect the new battery will be lighter, making it easier to handle during battery swaps, and adding slightly to the range. However, it is a trade-off between capacity, weight, service life, and charge time. This is true of all battery designs.

In the setting of business fleet, operating in a city with numerous fast charging stations, I imagine the fast charging and reduced weight are well worth the reduced range.

All IMO.