I'm wondering whether it is now time for regulators to pressure mobile phone companies to install longer life batteries. There is not really an incentive to prolong device life for manufacturers and when I look at recent progress on the car industry and utility battery side there is imho. potential.
Batteries always have a limited lifetime. "back in the day" we had waterproof phones with user replacable batteries, you could just buy another battery and replace it yourself. I have no idea why we can't do this now.
> I have no idea why we can’t do this now
For better worse I think the answer is quite simple - a combo of ease of manufacturing, a long term trend of slimmer devices that is broadly supported by customer behaviour, and an extra place to suggest a device upgrade instead of a repair. You’re more than able to get pretty much any smartphone battery replaced with a manufacturer similar spec these days, and people still choose not to do so.