Apple is quietly rolling out a feature in its next big software update that will prevent your iPhone's battery life from getting shorter over time

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Apple is quietly rolling out a feature in its next big software update that will prevent your iPhone's battery life from getting shorter over time

iPhone X wireless charging

Hollis Johnson

The goal of "optimized battery charging" is to prevent your iPhone's battery from staying at a 100% charge for too long.

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  • A new feature in Apple's upcoming iOS 13 iPhone operating system could help prevent the premature aging in iPhone batteries, which causes shorter and shorter battery lives over the ownership of an iPhone.
  • "Optimized battery charging" will prevent the battery from being stressed and aging faster by charging iPhone batteries only to 80%.
  • It'll only charge your iPhone with the last remaining 20% in the time before you usually unplug your iPhone during your charging routine.
  • Visit Business Insider's homepage for more stories.

The upcoming version of Apple's iPhone operating system - iOS 13 - comes with a new feature that will prevent your iPhone's battery life from getting shorter and shorter over time.

The feature is simply called "optimized battery charging," and its goal is to prevent your iPhone's battery from staying at a 100% charge for too long. Those who charge their iPhone overnight should take note!

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Indeed, batteries age faster when they're under stress, and staying at a 100% charge for long periods of time - like charging overnight every day - is stressful for batteries. Batteries retain less and less energy as they age, resulting in shorter battery lives as your iPhone gets older than when it first came out of the box.

I should note up front that iOS 13 is only coming to the iPhone 6S (including the iPhone SE) and newer iPhones.

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Here's how it works:

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When you plug in your iPhone to charge, it'll only charge up to 80%.

When you plug in your iPhone to charge, it'll only charge up to 80%.

This will prevent your iPhone from being at a 100% charge for long periods of time, like during an overnight charge, which ages your iPhone's battery faster.

It'll only finish charging the remaining 20% in the time before you typically unplug your iPhone from the charger.

It'll only finish charging the remaining 20% in the time before you typically unplug your iPhone from the charger.

Apple says your iPhone will "learn from your daily charging routine" when to top off the last remaining 20% of battery charge.

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Overnight charging — a common way to charge smartphones — offers a perfect example.

Overnight charging — a common way to charge smartphones — offers a perfect example.

You plug in your iPhone at night before going to bed, and your iPhone will only charge to 80%.

Your iPhone will eventually learn that you usually wake up and unplug your iPhone at, say, 8 a.m., and it'll only finish charging the last remaining 20% just before you typically unplug your iPhone.

For those who don't have such a predictable iPhone charging habit, Apple says the optimized battery charging feature in iOS 13 is only an option.

For those who don't have such a predictable iPhone charging habit, Apple says the optimized battery charging feature in iOS 13 is only an option.

Your iPhone will have a hard time learning your routine if you don't have a charging routine, so it might only charge to 80% every time you plug it in.

You can enable or disable the optimized battery charging feature in iOS 13 if you'd rather charge your iPhone normally.

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To be sure, all batteries age over time, and there's no avoiding it.

To be sure, all batteries age over time, and there's no avoiding it.

The one thing you have control over is how fast your battery ages. With its optimized battery charging feature, Apple is simply making it easier for you to control how fast your iPhone's battery ages. You don't actually have to do anything differently, which is great.

The optimized battery charging feature won't have much of an effect on iPhones that already have stale batteries.

The optimized battery charging feature won't have much of an effect on iPhones that already have stale batteries.

If your iPhone's battery is already showing signs of aging, where it only lasts a few hours per day even if it started the day at 100%, you're not really going to see the benefits of Apple's optimized battery charging feature.

This is the kind of feature that's going to work under the hood over the long-term, and it won't really help a battery that's already aged.

The best way to use this feature is with a new — or at least recently bought — iPhone with a fresh battery.

That doesn't mean you should go out and buy a new iPhone as soon as iOS 13 rolls out. Quite the contrary! Apple actually gave you four good reasons not to upgrade to a new iPhone when iOS 13 rolls out. And if your battery is a little stale, you can get it replaced for $80 at an Apple Store instead of spending hundreds on a new one.

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