Well Apple uses water damaged boards in refurb devices. How anyone trusts them anymore is beyond me.
Where's your prove?
Just because she says the glue is stronger than other repair shops and about or the same as Apple.
She might even have...you know...ulterior motives... cause she owns a repair shop.
Note: Not saying it's not from an Apple service, I just don't believe just any video on the webs.
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Incorrect. It's always decreasing over time which is why "nominal" is used to describe voltage in lithium ion batteries. It's never really constant (kind of like nature itself). Like I said, the bigger drops are at the beginning and the end of the life cycle. Most use will fall into the "nominal" range though, so generally speaking what you're saying is accurate in terms of what the user would experience for performance.
I updated post 565 with a graph, it's there, you are wrong, Lithium ion voltage does not degrade, not until end of life.