I have a “normal” iPhone 13 that I’ve been using since launch. Now with iOS 16.3 the phone sometime get so hot I don’t want to hold it - and my usage is the same. Nothing new, nothing unusual. I also noticed that the battery drain is higher. Now I need to charge my phone mid day which I did not need to before.
what to do?
iPhone 13, iOS 16
Hi Northrol,
Thanks for contacting Apple Support Communities!
We understand that you're concerned with the temperature of your iPhone and its battery.
Your iPhone battery is a consumable part which will eventually need to be replaced. We would expect that your iPhone battery health would decrease with each charging cycle. As your iPhone battery ages, you will need to charge it more frequently than you did when it was new. To learn more about how your iPhone battery works and what you can expect, feel free to look over this resource and included links: iPhone Battery and Performance - Apple Support
"About lithium-ion batteries
iPhone batteries use lithium-ion technology. Compared with older generations of battery technology, lithium-ion batteries charge faster, last longer, and have a higher power density for more battery life in a lighter package. Rechargeable lithium-ion technology currently provides the best technology for your device. Learn more about lithium-ion batteries.
How to maximize battery performance
“Battery life” is the amount of time a device runs before it needs to be recharged. “Battery lifespan” is the amount of time a battery lasts until it needs to be replaced. One factor affecting battery life and lifespan is the mix of things you do with your device. No matter how you use your device, there are ways to help. A battery’s lifespan is related to its “chemical age,” which is more than just the passage of time. It includes different factors, such as the number of charge cycles and how it was cared for. Follow these tips to maximize battery performance and help extend battery lifespan. For example, keep iPhone half-charged when it’s stored for the long term. Also avoid charging or leaving iPhone in hot environments, including direct sun exposure, for extended periods of time.
When batteries chemically age
All rechargeable batteries are consumable components that become less effective as they chemically age.
As lithium-ion batteries chemically age, the amount of charge they can hold diminishes, resulting in shorter amounts of time before a device needs to be recharged. This can be referred to as the battery’s maximum capacity — the measure of battery capacity relative to when it was new. In addition, a battery’s ability to deliver maximum instantaneous performance, or “peak power,” may decrease. In order for a phone to function properly, the electronics must be able to draw upon instantaneous power from the battery. One attribute that affects this instantaneous power delivery is the battery’s impedance. A battery with a high impedance may be unable to provide sufficient power to the system that needs it. A battery's impedance can increase if a battery has a higher chemical age. A battery’s impedance will temporarily increase at a low state of charge and in a cold temperature environment. When coupled with a higher chemical age, the impedance increase will be more significant. These are characteristics of battery chemistry that are common to all lithium-ion batteries in the industry.
When power is pulled from a battery with a higher level of impedance, the battery’s voltage will drop to a greater degree. Electronic components require a minimum voltage to properly operate. This includes the device’s internal storage, power circuits, and the battery itself. The power management system determines the capability of the battery to supply this power, and manages the loads in order to maintain operations. When the operations can no longer be supported with the full capabilities of the power management system, the system will perform a shutdown to preserve these electronic components. While this shutdown is intentional from the device perspective, it may be unexpected by the user."
Your iPhone temperature will also fluctuate. Your iPhone has built-in protections in order to prevent it from getting too warm. This article outlines what you can expect from your iPhone's temperature: If your iPhone or iPad gets too hot or too cold - Apple Support
"If your device gets too warm
iOS and iPadOS devices have built-in protections to prevent overheating. If the interior temperature of your device exceeds the normal operating range, your device will protect its internal components by attempting to regulate its temperature.
Avoid these conditions and activities because they might change the performance of your device:
If the interior temperature of your device exceeds the normal operating range, you might notice these changes:
Additionally, if you're navigating, your device might show this alert and turn off the display: "Temperature: iPhone needs to cool down." Navigation still provides audible turn-by-turn directions. When approaching a turn, the display will illuminate to guide you through the turn."
We hope this helps you.
Cheers!
From all of those symptoms your phone is broken. Contact Apple support using the Support link at the top of this page or the bottom left corner.
Hey Northrol,
If you're still experiencing issues with battery life after trying the tips mentioned earlier, we'd advise contacting Apple Support directly for assistance.
See contact options here:
Take care.
No this is happening directly after an update. Never had an issue with my iphone 13 pro max heating up before even under heavy use with multiple apps running (games, stream running in background, messaging apps).
This is something caused by an update.
I think mine became better with the 16.3.1 - but I’m not sure yet.
Same thing. Updated to IOS 16.3.1 and battery gets hot three or four times throughout the day and while charging. I put in a new battery in July of last year so the battery is new. Have to charge at least twice a day even if not using phone. I deleted quite a few apps, turned off all notifications etc. this is unacceptable APPLE, you must do better!
While I appreciate the “official” response, I’m not buying it.
Less than 12 hours ago, prior to updating to iOS 16.3.1, there was ZERO battery charging issue, shortened battery life, overheating or any problems with this brand new phone. Immediately after updating to iOS 16.3.1 my phone is overheating like it’s 120° outside and I left it in the car, half the battery life I had before and not fully charging.
Please stop giving us these ridiculous answers that it’s a lithium ion battery life problem. We’re not buying it.
Apple- please issue an update and fixes for this clearly buggy version!
Same, and i have just bought and returned 3 brand new iPhone 11’s. The heat is that extreme, i cannot even hold the phone. I am now waiting on the 4th replacement in 2 weeks. Running ios 16.3.1 also had the charging pause because the phone has got that hot during charging. My old 4 year old iPhone 11 that was never on iOS 16. Has zero problems.
literally afraid my phone is about to explode. It is clear iPhone 11 cannot function properly on iOS 16. I am now downloading firmware to try and get iOS 15 or earlier back on my brand new iPhone. Worst Apple experience i have ever had. 3 brand new phones, all with the same issue.
extreme battery drain, extreme overheating. Assuming the 4th new iPhone due to arrive will have the exact same issues, i am done with apple.
i could literally fry an egg on my phone, and burn it.
and right now as i type this message, my phone is literally scolding my hand.
I have an IPhone 14 pro max. Sunday evening (a little over 24 hours ago) I updated to 16.3.1 and ever since, my phone gets extremely hot, even while it is just sitting. I charged it while I slept to 100% and have already had to charge it again. That is in 24 hours. I never had any battery issues or issues with over heating until my phone updated. This is a brand new phone so if the issue is a bad battery like the rep stated, then that is apples fault since this is a brand new phone and should not already be experiencing battery issues
I have a 13 Pro Max, just updated from a late version of iOS 15 to 16.3. The back of my phone is almost getting to hot to hold even through my case.
I never had this issue before the 16.3 update, so I am quite sure it has something to do with that.
I'd also like to add that my battery life is now tanking! Complete night and day difference from just before the update I did on Friday Feb. 10th to today Monday Feb. 13th.
My iPhone 11 is heating up too much with the 16.3.1. It is also having immense battery drain. Not Satisfied with this
Shhhhh… Not sure it’s true or not, but Apple normally implement such GRAND act to tell their customers to purchase a new Apple product (in a hush hush way off course ). :)
By the way, mine iPhone 13 is also burning like ovan as soon as got a forced update of 16.3.1
do we have a way to downgrade any update we don’t like / want?
iPhone 13 iOS 16.3 overheating
