No doubt those batteries will be proprietary, with a chip in it so you can only use new batteries supplied by your phone producer. Better start working on a law against that too.
mildly overpriced batteries of varying reliability will be ubiquitous. you will be able to get rid of that warning message with a stop at a gas station, or perhaps…
a low monthly fee.
perhaps rather like toothbrush head, you could get a new one periodically. on subscription. just throw the old one in the trash, and it will magically disappear to somewhere else.
After three years, my phone is out of support, with battery health at 90%. Considering my phone is out of support starting this year, this is neither expensive, nor planned obsolescence.
I'll save and buy another iPhone (the latest and greatest) in a couple of years, and will use that one for a decade, too.
How this is gouging the customer?
I support replaceable batteries, that will be great, but current practice is not to make batteries so expensive that people prefer newer phones, on the contrary.
Being removable does not resolve everything. For example, it's very common for laptop removables, especially from a certain ex-IBM division company, to have a self-destructive fuse in case the voltage drops as you replace the cells (making it all the more difficult and unsafe) because there's no original ones sold anywhere, and your alternatives are shady housefires from China that have the lowest quality ones in them no matter how much you pay, and it's very annoying.
That doesn't completely solve the problem, but it's not a glaring loophole any more.
It's a compromise between safety, performance and durability. Replaceable batteries might be more difficult to use and have their performance reduced for safety.
Although it doesn't warrant planned obsolescence, of course, but those security/performance things might be another excuse to reduce consumer choices.
Charging is essential and had to be standardized. Fast charging is a bonus.
The interesting bits of the spec use extra pins from Type-C, so for the most part it's Type-C's charging norm.
Batteries must be "available as spare parts of the equipment that they power for a minimum of five years after placing the last unit of the equipment model on the market, with a reasonable and non-discriminatory price for independent professionals and end-users"
And there's a ban on software-locking too: "Software shall not be used to impede the replacement of a portable battery or LMT battery, or of their key components, with another compatible battery or key components."