I have an iPhone 11 Pro which is now about 3 ½ years old, and under battery health it says that it’s still at 100% capacity. Feeling less than confident in this, I plugged it into coconutBattery, which tells me it’s at 97%, and has 706 charging cycles under its belt. I find this unbelievable, especially since in the last few weeks I’ve been getting low power notifications around 6 or 7 pm daily, whereas I used to be able to go all the way until bedtime without getting a notification. I’ve also been getting the nagging feeling that the phone just isn’t as snappy as it used to be — e.g. if I press the power button and put the phone in my pocket, nowadays the screen is often still on when it gets there, so it starts to do stuff as the pocket fabric touches it.
Compare and contrast with my 2-y.o. iPad mini, which has a little over 650 cycles and 88% capacity, according to coconutBattery.
Is there a way to get an idea of the actual state of my battery?
No