My 3 month old iphone 11 maximum capacity drop to 98%. While my 3 year old iPhone 8 is still at 96%. Why does the maximum capacity drop so fast for the new phones. Understand that it is inevitable for it to drop by it’s just too fast. My friend’s iphone 11 still at 100% at 4.5 months. But he doesnt charge to full always.
So should I charge till 80%++ then plug out? Will it be able to prolong the battery lifespan?
Like I said, too much data is bad. I don't even know how credible is the battery data.
One observation is that is very odd that you iPhone 8 battery health is still at 96% after 3 years. That is almost impossible if you have been using it.
You cannot compare your phone battery health with another person's because your usage pattern may differ greatly. 98% isn't a huge drop either.
Charging to full or not doesn't make a huge difference. It really depends how many cycles have you depleted. 1 cycle = 0 to 100%.
Anyway, I agree that you should just use your phone normally. The phone is supposed to provide you with convenience. By going out of the way to "save" the battery, which will eventually have to die, doesn't make sense.