maybe the people that forget to charge their phone will also contrive
to leave this overpriced device at home .......... or forget to buy new
AA batteries to put in it

before I watched a "news" video, I wondered if it would be powered by a
fuel cell instead

I remember watching the X-files years ago, and he's trapped in a locked
and buried steel container in the desert, pulls out his phone and it
works - miracles like this don't need backup by the inconvenience of
the Turbocharge