Apple offers you entry to very particular details about your battery. You possibly can see this your self by going to Settings > Battery, and there is extra data for those who click on on Battery Well being.
However your iPhone collects much more details about your battery.
However Apple does not make it straightforward so that you can entry this data.
It is buried. It is buried deep.
To search out this data it’s a must to go to Settings > Privateness, then scroll to the underside and faucet on Analytics & Enhancements.
Then that you must click on on Analytics Information. This setting solely exists in case you have Share iPhone Analytics (or Share iPhone & Watch Analytics) enabled. If it is not enabled, you will must allow it and wait a day or so for the iPhone to gather the information.
Sure, the knowledge is barely logged for those who select to share it with Apple. However oddly, Apple does not make it straightforward for you to check out it.
If Analytics Information is enabled, then faucet on it, and you will be introduced by what seems to be like a wall of recordsdata.
Do not panic!
You have to scroll till you discover a file beginning with the identify log-aggregated. There’s more likely to be a bunch of them with dates within the identify.
The newest one will probably be on the backside of the checklist.
Faucet on it to open it and it will be full of knowledge.
A ton of it.
And going by way of this information on the iPhone itself is a ache (though may be executed for those who’re affected person and do a duplicate and paste into an app like Notes).
What I do is I faucet the Share button and e mail the file to myself so I can open it at my leisure on a Mac or PC (you could possibly all the time AirDrop it to your self).
The file accommodates loads of data, so after getting it open in a textual content editor you can begin searching for particular data.
First off, for those who search for BatteryCycleCount, that may inform you what number of recharge cycles your battery has been by way of. Based on Apple, your battery ought to retain 80 p.c of its capability after 500 recharge cycles, so gaining access to this determine.
That is in all probability crucial determine that Apple does not inform you.
However there’s extra.
One other metric is MaximumFCC, which refers back to the most capability of your battery when new as measured in mAH (milliAmpHour). Apple prints a rated capability on its batteries, however it is a theoretical quantity, and the precise capability will differ.
The determine that you simply get from the log file would be the most capability of your battery as measured by the iPhone.
The MaximumFCC will virtually all the time be just a few p.c higher than the battery’s rated capability. This accounts for why the battery does not begin to lose Battery Well being on day one.
One other determine you may get out of the logs is NominalChargeCapacity, which supplies you present capability of your iPhone’s battery. That is the present capability of your iPhone’s battery and is once more measured in mAH.
This offers a sign of how worn the battery is.
Are you able to do something to cut back battery put on?
Your battery will lose about one share level for each 25 cycles (be aware that you simply won’t begin noticing this instantly as a result of the precise capability or MaximumFCC of the battery is bigger than the rated capability), then aside from utilizing your iPhone much less, there’s not a lot you are able to do.
You possibly can, nonetheless, cut back on untimely battery put on by holding the battery inside its rated temperature zone, and never overcharging it.
The iOS characteristic known as Optimized Battery Charging does an excellent job of stopping untimely battery put on from overcharging.
However be aware that I stated, “untimely battery put on.”
It does not do something for normal battery put on. You possibly can’t change the legal guidelines of physics.
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