alt Hacker NewsA long time ago, I had a phone with replaceable battery. I would much rather charge phone. I had to change the battery every few hours, partly because the battery was small to make replaceable and partly cause wireless sucked.
Battery life is much better now. I put phone on wireless charging pad and it is always charged when I need it. I use it all day and still have power. I carry power banks in bags if need it. External battery is better because it works with any device without having device specific batteries. Also, there are now batteries that magnetically attach to phone and wirelessly charge.
It would be nice if it was easier to replace battery, but don't need replaceable battery every day for something that happens in couple years.
The battery in your current phone is not that much bigger than the replaceable cells of yore.
The big difference is simply that battery chemistry has improved and new cells have more energy per volume.
There is no technical reason at all that we can't have replaceable cells with the capacity of current internal batteries. Unless you count waterproofing, which I've always viewed as nothing more than an excuse for planned obsolescence. There are definitely ways they could engineer water-resistant phones with replaceable cells.