Apple offers you entry to very particular details about your battery. You may see this your self by going to Settings > Battery, and there is extra data when you click on on Battery Well being.
However your iPhone collects much more details about your battery.
However Apple would not make it simple so that you can entry this data.
It is buried. It is buried deep.
To seek out this data it’s a must to go to Settings > Privateness, then scroll to the underside and faucet on Analytics & Enhancements.
Then you might want to click on on Analytics Knowledge. This setting solely exists when you’ve got Share iPhone Analytics (or Share iPhone & Watch Analytics) enabled. If it isn’t enabled, you will must allow it and wait a day or so for the iPhone to gather the information.
Sure, the knowledge is simply logged when you select to share it with Apple. However oddly, Apple would not make it simple for you to try it.
If Analytics Knowledge is enabled, then faucet on it, and you will be introduced by what appears like a wall of information.
Do not panic!
You should scroll till you discover a file beginning with the title log-aggregated. There’s more likely to be a bunch of them with dates within the title.
The most recent 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 means of this knowledge on the iPhone itself is a ache (though might be carried out when you’re affected person and do a replica and paste into an app like Notes).
What I do is I faucet the Share button and electronic mail the file to myself so I can open it at my leisure on a Mac or PC (you can all the time AirDrop it to your self).
The file comprises plenty of data, so after you have it open in a textual content editor you can begin searching for particular data.
First off, when you search for BatteryCycleCount, that can let you know what number of recharge cycles your battery has been by means of. Based on Apple, your battery ought to retain 80 % of its capability after 500 recharge cycles, so getting access to this determine.
That is in all probability an important determine that Apple would not let you know.
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 this can be a theoretical quantity, and the precise capability will range.
The determine that you just get from the log file would be the most capability of your battery as measured by the iPhone.
The MaximumFCC will nearly all the time be just a few % larger than the battery’s rated capability. This accounts for why the battery would 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 (word that you just may not begin noticing this instantly as a result of the precise capability or MaximumFCC of the battery is larger than the rated capability), then other than utilizing your iPhone much less, there’s not a lot you are able to do.
You may, nevertheless, cut back on untimely battery put on by retaining the battery inside its rated temperature zone, and never overcharging it.
The iOS characteristic referred to as Optimized Battery Charging does a very good job of stopping untimely battery put on from overcharging.
However word that I mentioned, “untimely battery put on.”
It would not do something for normal battery put on. You may’t change the legal guidelines of physics.
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