

Your first paragraph pretty much agrees with the grandparent of this whole thread. What constitutes “max” is something that the battery manufacturer and the phone manufacturer come up with.
You said “some do this some don’t”. It doesn’t make any sense at all. All manufacturers have to decide what 100% means. There is no some do some don’t.
I’m not a battery engineer
Obviously not. Might as well stop at that then
Lol um no they didn’t.
Someone else mentioned “80%” when you didnt understand the first comment, but they didn’t say “all manufacturers stop at 80%” either.
You have got to be trolling at this point to be this obtuse