[alkonaut]

Which devices don’t have replaceable batteries? No iPhone had a battery that couldn’t be replaced for maybe 10% or the purchase cost or so. Why do people consider a smartphone with a degraded battery ”e-waste”? Just go have the battery replaced?

[AdrianB1]

My Asus ZenFone 3 - I cannot find a battery for it, so it is now permanently connected to an USB cable doing other stuff than being a mobile phone.

There is a huge diversity in phone and battery models, it is easy to find a replacement for some, difficult or impossible for others.