> Now days, there is much less need for that because a charge lasts much longer, and if you do run low you can fast change in 30 minutes or so. Not buying extra spare batteries for every device means less e-waste, not more!

My current iPhone's battery capacity is already starting to decrease and it was never great to begin with (needed it for work). If it was replaceable, I'd do what I used to with Android phones years ago - get a spare, if the old one is really bad or turning into a pillow, then recycle that and keep using the replacement, otherwise could use both side by side and didn't even need a separate charging bank.

Lots of people will look in the direction of getting a new phone altogether, I might have to do that as well, turning the whole phone into e-waste, instead of giving it 5 more years of lifetime.