Battery Performance and Overheating

shaarven5 Said:

"Battery Performance and Overheating: Updated my iPhone 12 to 17.0.3 and immediately noticed the battery draining at fast rate. Lost 10% in less than 5 minutes. Also the device is getting hotter than before the iOS 17.0.3 update. I have never charged my phone many times before this update. Battery health at 89%."

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Thank you for the screenshot.

ou're not the first to have reported this on these forums. This is a well-known issue. Power is a big concern for iPhone 12 series and up, after installing iOS 17 versions. Question is: "Jost how many people have actually reported this to Apple.

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

D. 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.

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

shaarven5 Said:

"Battery Performance and Overheating: Thank you. I have submitted my feedback and hopefully next update fixes my problem."

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You are welcome!

Thanks for doing your part. It will help many for certain!

Excellent job troubleshooting!