After updating to iOS 18.4.1, my iPhone 13 is turning off again and again

Leelai2025 wrote: "It’s running iOS 18.4.1

It still has it’s original battery and the % is 74%"

Leelai ~ 74% is not healthy and is almost certainly the reason for that problem. Apple recommends having the battery replaced at around 80% – so have the weak, aging battery replaced and all will be well:

iPhone Battery Service

About genuine iPhone batteries

Repair Provider Verification

(Articles found by searching Apple's Knowledge Base.)

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Hello~ What is your battery health? Go to Settings > Battery, then tap Battery Health & Charging. If 80% or below you need a battery replacement.

Genius Bar Reservation and Apple Support Options - Apple

Find Locations

~Katana-San~

I agree with my fellow community members and that you should check your iPhone's battery health in Settings > Battery > Battery Health and Charging. The iPhone 13 was released in 2021, and the battery is designed to last about 2 years under normal conditions, so now being 4 years you are likely overdue for a battery replacement. Occasional shutdowns are a common symptom of a significantly degraded battery. The update also could have caused additional stress to the already failing battery.

Start here: iPhone Battery Replacement - Apple Support

Hello~ What is your battery health? Go to Settings > Battery, then tap Battery Health & Charging. If 80% or below you need a battery replacement.

Genius Bar Reservation and Apple Support Options - Apple

Find Locations

~Katana-San~

ImJeppe wrote:

I have had the exact same thing with my iphone 11.

the usb-cable charging was working fine before updating to 18.4.1..

Now I can only charge with a wireless charger.

Expecting a quick fix from apple!!

That seems to be the exact OPPOSITE problem of the post you replied to. The other poster shows a failure of MagSafe charging, while you are having a problem with wired charging.

For your case, I would check the charging port on your phone and clean if necessary and also test with another cable/charger. For an iPhone 11, you should also check the Battery Health at Settings > Battery > Battery Health & Charging. If is is below 80%, then it is time for a new battery. If this battery has never been replaced, it would be extremely rare that the battery would show above 80%.

In most cases the wireless charging will be a slower charge than the wattage used on a wired connection and a failing battery will have trouble with a fast charge. The power used to update to iOS 18.4.1 may have been the final straw for an already weak battery and the same would have happened with any other power intensive process or in the near future.

I have seen not an issue here with wired charging and the 18.4.1 iOS update, so waiting for a fix from Apple may not be the best route to take. There are 2 additional steps you can take if it is not a problem with your battery or charger, cable, port:

• Force Restart. I would recommend to do this after any iOS update to clear out any stale caches. I have not seen it resolve a charging issue, but it is still something I would do.

Force restart iPhone - Apple Support

• Reset Device. This would be best done with a computer where iOS can be restored in case of a problem with the update. Of course, you would need to make sure you have a valid backup as all data would be erased on the device and you will need to restore your data from the backup.

Restore your iPhone, iPad, or iPod to factory settings using a computer - Apple Support

Without any resolution, take the device to the Apple Store where they will run a free diagnostic to determine the exact problem. You can certainly do this first to avoid any of the previous troubleshooting steps yourself.

Try updating your phone again to see if that helps. When my iPhone is acting up, I usually do a force restart — just press Volume Up, then Volume Down, and hold the Power button until the Apple logo appears.

If updating or force restarting doesn’t work, if you want to try somethings before gooing to do a battery replace, check out this article: iPhone Keeps Restarting After iOS 18 Update? — it has lots of helpful tips. Hope it helps!

The first thing to check is your Battery Health at Settings > Battery > Battery Health & Charging > Maximum Capacity.

MikhailSoldaev wrote:

My IPhone 13pro(with 100% battery health) periodically shutting down too after updating on 18.4.1

When was your battery replaced and who replaced it?

Did you just recently purchase this device used?

I would also recommend a Force Restart to clear out only stale caches after the update:

Force restart iPhone - Apple Support

Hello~ You have an iPhone 13 with 100% battery health? Something off there. Go to Settings > Battery, then tap Battery Health & Charging. What is your battery health? Have you had your battery re by someone other than Apple?

~Katana-San~

Leelai2025 wrote: "Same thing happening to my iPhone 13 Pro Max..."

Leelai ~ What version of iOS is it running?...

Settings > General > About > iOS Version

Does it still have its original battery?

And what's the Maximum Capacity % here?...

Settings > Battery > Battery Health & Charging

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Same thing with me I just updated to iOS 18.5 and everything is resolved

It’s running iOS 18.4.1

It still has it’s original battery and the % is 74%

I have had the exact same thing with my iphone 11.

the usb-cable charging was working fine before updating to 18.4.1..

Now I can only charge with a wireless charger.

Expecting a quick fix from apple!!

This is happening to my iPhone13 ProMax. It constantly crashes and restarted by itself after upgrade to 18.4.1.

I thought it was a bad upgrade so I followed the instructions to reset everything and restored iPhone from backup, the issue still remains.

The phone battery health is at 85% percent. I am stuck now. Any help is appreciated !

this is also happening to me with my iphone 15 after the update. The battery health says “normal” and the maximum capacity is 87%

I have done the force restart, I cleared my storage, and it’s still doing it.