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European iPhones are more fun now
(www.theverge.com)
This is a most excellent place for technology news and articles.
Unfortunately, they do not define it that way.
And there are exceptions based on capacity and how long you guarantee the battery capacity will be good for. IIRC, if it still has 70% capacity by 3 years time, it doesn't have to be replaceable at all.
Can you really guarantee that? I mean, it's pretty much dependent on individual usage.
Sure you can. Car manufacturers do it today.
You will have to define "3 years" as well. It can't be a blanket 3 calendar year thing, it would have to be X number of cycles which the average user would realistically hit with 3 years of usage. Not someone glued to their phone playing games all day that need to charge three times a day.
Yup, probably one charge from 20% to 80% every day or something like that.
I do not remember reading that, the only exception I remember is for devices that are intended to be used under water, which phones are definitely not