Thanks for the feedback, thats great to hear.
I was referencing the battery production and lifetime. As well as the reasonable to expect overall lifetime and repair ability. How many decades do you expect to use it?
Given what goes into these batteries and the inability to recycle the components, sustainable is quite questionable. This is a stop gap that only solves a very specific metric, fossil fuels.
There is also an economic incentive to sell more stuff to a limited numbers of customers. Thats visible with most products, its just market forces so i dont expect EV to magically withstand that. We likely need actually more sustainable (as in designed for) but that goes counter to market forces.
edit: To give examples for the general trend, i have two saws from the same maker, the newer one with a difficult to replicate plastic clip holding the sawblade. Defect controller board for mid-bikes would officially mean replacing the motor. Printers and phones dont need to be mentioned. Given fiduciary responsibility to their shareholders you cant expect much else. New models are designed and need to be sold. Thats problematic given the materials used.