Originally Posted by
amr ashraf mostafa But Apple says that the battery of the iphone has nearly 1500 charging cycle before replacement needed and these charging cycles depend on how many times charged from 0 to 100%.
If you charge from 15% to 85%, that's 70%. So you have 30% left before using another battery cycle.
So, from 15% to 85% again (15% + 30% = 45%. Here's yout battery cycle used).
45% to 85%, there's 40%.
So there is 60% left before you use another battery cycle.
That's how it works.
(95% to 100% doesn't use a battery cycle, that's only a 5% charge).