Another Update About Optimized Battery Charging

I’ve been experimenting with optimized battery charging since iOS 13 came out, and I posted an update of my experiences after using it for a while. But I decided to provide another update on the topic as I have now figured out how it works.

In short, if you’re someone who is constantly topping off your iPhone with a charge during the day and the battery never dips below the 50% mark, it is unlikely that optimized battery charging will kick in. But if you run the battery of your iPhone down during the day and end up below the 50% mark, optimized battery charging will kick in. Since it is turned on by default, you don’t have to worry about checking to see if it is on on not. But if you are the paranoid sort, you can check it by doing the following:

  • Go to Settings
  • Go to Battery
  • Go to Battery Health and look for Optimized Battery Charging

And you can confirm that it is actually working by going to Settings and Battery and looking for a graphic like this:


As you can see, it partially charges and then stops at 80% around midnight. It stays there until roughly 3AM when it charges the rest of the way and is ready to go sometime between 4AM and 5AM. Which is handy as I get up at 6AM and the iPhone knows that.

As for it helping my long term battery health, time will tell on that front. I’ve had my iPhone XS for over a year now and the maximum capacity which is the maximum amount of charge that it can hold relative to when it was new is 96%. Apple says this about what I should expect when it comes to battery health:

A normal battery is designed to retain up to 80% of its original capacity at 500 complete charge cycles when operating under normal conditions.

So based on that, I am way ahead of that figure as it is down 4% over a year which implies that if I do not change my usage patterns, I could be around 8% to 10% at this time next year. But I will point out that this figure was without optimized battery charging seeing as that was only added to iOS a few months ago. So if I am say 8% or below without changing my usage patterns, it implies that optimized battery charging is doing its job in terms of protecting the long term health of my iPhone’s battery. So my next task is to monitor the health of my battery of the next few months to see if it slows down the rate that I lose capacity. If I notice anything positive or negative on that front, I’ll report back via another update.

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