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A tiny radioactive battery could keep your future phone running for 50 years
(www.techradar.com)
This is a most excellent place for technology news and articles.
I'll concede, useless was a bit harsh. Let's say "no longer fit for the average user" considering the average lifespan of a mobile phone is 2-4 years and a company doing software and security updates for a decade is very rare.
You are very much the exception here.