In message , at 22:31:47 on
Tue, 16 Jul 2019, Charles Ellson remarked:
What's the desire for a removeable battery these days? I get that
batteries die progressively after a couple of years or more, but until
then portable power banks are higher capacity and more flexible (you
can use them with multiple things!) than a spare battery.

I suppose if there was a thin power bank I could superglue to the back
of a phone, and have an unobtrusive permanently connected cable, that
might just substitute for having a phone where I can change a normal
battery in under a minute.

But I suspect that the power bank wouldn't do a pass-through for
connecting to the phone's internal storage. How do you suggest fixing
that?

Clip-on/piggy-back power banks with USB pass through are available but
you're probably stuffed if you haven't got an iPhone or a Samsung
Galaxy.

Now you mention it, I did once have a case for a smartphone that had
power bank integrated, which meant having a pass-through connector. But
the battery inside that died very quickly (a matter of months). The fact
they are so rare makes me think there's something systemically wrong
with them.

Is it also perhaps because the backs of phones increasingly have buttons
and camera lenses/flashes and so on - which would tend to get obscured
unless the case had exactly the correct cut-outs in it.
--
Roland Perry