Disabling May Lead To Unexpected Shutdowns On iPhone? Is It True?

By now, you’ve probably heard that Apple slowed down older iPhones in order to conserve battery life. If this affected you and made you angry, don’t worry — you can now right this wrong. In this article, I’ll explain what’s in the new Battery Health section of the Settings app and show you how to disable Performance Management on your iPhone!

The New Battery Health Section Of Settings App

In the wake of the announcement that they slowed down older iPhones to spare battery life, Apple has been working on a new “Battery Health” section of the Settings app. The Battery Health section was introduced with the iOS 11.3 update, which was released on March 30, 2018.

The Battery Health section of the Settings app displays your iPhone battery’s maximum capacity and gives you the ability to disable Performance Management.

What is Performance Management?

Performance Management is the now notorious setting that slows down your iPhone in order to make its battery last longer. This feature was secretly implemented when Apple released iOS 10.2.1, but iPhone users didn’t have the ability to turn it off — until now. If you update your iPhone to iOS 11.3, you’ll have the ability to disable Performance Management in the Settings app.

How To Disable Performance Management On iPhone

To disable Performance Management on your iPhone, open the Settings app and tap Battery -> Battery Health. Under Peak Performance Capability, you’ll see a very small Disable… button.

After tapping Disable…, a very scary pop-up will appear on the screen saying “Disabling May Lead To Unexpected Shutdowns”. Don’t be afraid — tap Disable and turn off Performance Management.

disable peak performance capability

What If I Don’t Have The Option To Disable Performance Management?

It’s possible that your iPhone battery is in perfectly good health and that Performance Management was never turned on. This was the case for me, as my iPhone’s battery still has a maximum capacity of 94%.

iphone maximum capacity 94

If you don’t see the option to Disable…, your iPhone was never slowed down by Apple!

Will Disabling Performance Management Lead To Unexpected Shutdowns?

The truth is that disabling Performance Management could lead to unexpected shutdowns, but unexpected shutdowns are pretty uncommon.

We surveyed our iPhone Help Facebook Group to get a feel for how regular iPhone users were being impacted by unexpected shutdowns. More than half of our respondents said they’ve never experienced an unexpected shutdown on an iPhone that was affected by the battery throttling update.

Furthermore, we can’t be entirely sure whether or not those who experienced unexpected shutdowns did so because of their iPhone’s battery performance.

When Payette Forward Founder David Payette worked at the Apple Store, he handled thousands of iPhones, many of which were put through Apple’s standard battery test. This test is designed to determine whether or not a battery is capable of performing an iPhone’s essential functions.

In all his time at the Apple Store, only one iPhone failed the battery test.

This leads us to believe that unexpected shutdowns aren’t as big of a deal as Apple is making them out to be and that they may have had other motivations when deciding to slow down old iPhones.

Replacing Your iPhone’s Battery

If you’re concerned about your iPhone’s battery health and performance, you may want to consider getting it replaced. Apple is offering $29 battery replacements to anyone with an iPhone 6 or later, if that iPhone was impacted by the battery throttling update. Unfortunately, this offer isn’t extended to iPhone 5s, who may have also been affected by Apple’s speed-throttling update.

Before heading to your local Apple Store, take this into consideration: if something else is wrong with your iPhone (e.g. screen cracked or damaged port), Apple won’t just replace its battery. You may also have to pay for repairs to the other damaged components as well, which could turn your $29 battery replacement into a repair that costs hundreds of dollars, especially if your iPhone isn’t covered by AppleCare+.

If you want to get your iPhone battery replaced by Apple, set up an appointment at the Apple Store near you and take it in at your earliest convenience.

A Battery Replacement Alternative

If you don’t think the Apple Store is the right option for you, we also highly recommend a repair company called Puls. Puls is an on-demand repair service that sends a certified technician directly to you in as little as an hour, whether you’re at home, work, or your favorite local restaurant.

All Puls repairs also come with a lifetime warranty.

Don’t Expect Unexpected Shutdowns

I hope this article helped you understand the new Battery Health section of the Settings app and what Performance Management does to your iPhone. Make sure to share this article on social media so your friends and family can speed up their old iPhones again too!

I’d love to hear from you in the comments section below — did disabling Performance Management cause unexpected shutdowns on your iPhone?

About Author

David Lynch is an expert on cell phones, cell phone plans, and other tech. After using a flip phone into his early 20s, he learned the ropes about iPhones and Androids from a former Apple employee. Today, his articles and videos are read and viewed by millions, and he has been cited by major publications including Reader's Digest, Wired, CMSWire, Consumers Advocate, and more.

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David Lourerio
10 months ago

My battery power on my apple Iphone 8 keeps turning off by itself. When I press a circle button it doesn’t turn on I plug the it in with my charger red battery shows up before the apple shape waiting to show up it stills full or half charge showing green but sometimes it’s red when plug it back in. I couldn’t watch any videos or call or answer my Iphone only watch videos on my Iphone icluding calling or answering or texting only with a charger plugged. I don’t know when or how long will I get a new… Read more »

3 years ago

my iPhone 6s is not charging good. I tried cleaning charging port which helped some. I removed when indicated said fully charged and phone battery was a 6% within 20 min. Suggestions?

Colin Boyd
3 years ago
Reply to  Sue

Hi Sue! This sounds like it could be a hardware issue. It may be time to contact Apple Support. I’m sorry we couldn’t be of more help, best of luck!

Gregg Chanon
6 years ago

Should I get a new battery if my iphone 6 is showing maximum capacity of 90%?

Donna Marie Beck
6 years ago

still can book an appointment in St. John’s, NL Apple stores, they will e-mail you when the battery is in the store.

Aaron Schilling
6 years ago

Not sure about stores in the U.S. But in Ontario you can no longer book an appt at the Apple store. That option was removed from the website some time ago.