iPhone 16 Pro Max overheating and rapid battery drain after iOS 18.4 update

Ctarek7 Said:

"iPhone 16 Pro Max overheating and rapid battery drain after iOS 18.4 update: Iphone 16 pro max noticed overheat last 2 days with rapid consumption of charge. PS updated to ios 18.4 more than week"

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Troubleshooting a Draining iPhone Battery:

A. Battery Drain Info:

The iPhone battery will drain, unless it is plugged in and charging. With lots installed, the charge would be slower. As for how fast it would drain the battery, that would depend on the battery health and the volume (sound) you use.

1. Go Here: iPhone Battery and Performance - Apple Support
2. Scroll Down: to "Your battery's maximum capacity"

B. Verify the Baterry Health Percentage:

Apple recommends you get a new battery, once the Battery Health reaches 80% or lower. When the Battery Health is 80% or lower, it is time for a new battery. Unfortunately, these if no way to know how, nor when, then percentage decrease occurred. So see if it tine for a new battery...

1. Go To: Settings
2. Tap: Battery
3. Tap: Battery Health
4. View: [the percentage]
5. Is it 80% or less?  If so, it is time for a new battery.

C. Troubleshooting the Battery:

• iPhone Battery and Performance - Apple Support

• Charge and Monitor the iPhone Battery - Apple Support

• About the Battery Usage on your iPhone - Apple Support

• About Optimized Battery Charging on your iPhone - Apple Support

• If you see "Your iPhone Battery may Need to be Serviced" - Apple Support

• Use Low Power Mode to Save Battery Life on your iPhone - Apple Support

Ctarek7 Said:

"iPhone 16 Pro Max overheating and rapid battery drain after iOS 18.4 update: Iphone 16 pro max noticed overheat last 2 days with rapid consumption of charge. PS updated to ios 18.4 more than week"

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Troubleshooting a Draining iPhone Battery After an Update:

What you are reporting is an all-too commonly reported bug in these forums. Battery drain is common on thesee forums. Question is... "Just how many people actually reported this to Apple?"

Report this to Apple...

Do your Part: Provide Apple with feedback on this, letting them know about this issue.  Apple may not get back to you directly, but the more feedback they receive on this, the more they will know what is occurring, and what bug fixes to include in updates to come. Apple will know nothing of this, if you don't report it to them.

1. Go Here: Feedback - iPhone - Apple
2. Select: "Bug Report" for the "Feedback Type"
3. Comment: that this all began after installing an update. Include the URL of this thread
4. Proceed from there as necessary

Thanks for doing your part —it will hemp many, for certain.