iPhone 16 Pro with iOS 18.3.1 - overheating and battery drain

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Level 1

5 points

iPhone 16 Pro with iOS 18.3.1 - overheating and battery drain

Hi everyone,

Since Monday (02/24/2025), I've been having an issue with my iPhone. Even when I'm not using it, the phone stays warm, and the battery drains really fast. Before this, I only had to charge it once a day, but now, even with just about 2 hours of active use, I need to charge it 2-3 times per day.

I also noticed a big difference in the battery stats. In the screenshot, you can see that since Monday, my active screen time has been around 3 hours, but the battery usage is over 100%. Before this issue, I could use my phone actively for up to 9 hours, and the battery usage was just a little over 70%.

It also seems like the issue is getting worse each day. The most battery is being used by the Home & Lock screen.

Does anyone know what might be causing this or how to fix it? Any help would be greatly appreciated!

Thanks!

iPhone 16 Pro

Posted on Feb 27, 2025 02:09 AM

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Answer 1

Feb 27, 2025 02:01 PM in response to dalibor200

Thanks for the screenshot, dalibor200; that was very helpful.

The Home & Lock Screen offers a clue (Always On Display).

Open Settings ➢ Display & Brightness ➢ Always On Display ➢ Off.

By turning off the Always On Display, that should hopefully offer better battery performance. ⇢🔋

⇣ Some battery tips: ⇣

All rechargeable batteries are consumable components that become less effective as they chemically age.

Recent software updates can accelerate that process by adding features that consume more power.

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.

Apple won’t replace the battery until it reaches 80% capacity.

Li Ion (Lithium Ion) batteries have recharging capabilities; however there are limits.

I recommend to slow charge your iPhone to maximize the charge capacity, battery health and efficiency. ⚡️🔋

NOTE:

Capacity loss in standby applications is largely determined by temperature.

Charge above -30°C and discharge below 55°C for best results.

Battery Performance Tips:

Click ▶︎ iPhone User Guide. 📖

Good luck! 👋🏼😉

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Answer 2

Feb 28, 2025 10:40 AM in response to dalibor200

What apps do you actively use the most?
Have you powered off your iPhone recently?

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Answer 3

dalibor200 Author

Level 1

5 points

Feb 28, 2025 12:37 AM in response to Smilin-Brian

Hi Smilin-Brian,

Thanks for your response! I appreciate the suggestions.

My iPhone is actually quite new, and the battery has only gone through 64 cycles, with 100% battery health. I’ve already had Always On Display turned off, and I keep Low Power Mode on all the time, but unfortunately, that hasn’t helped.

The issue persists, and the battery drain seems abnormal compared to how it was before. Do you have any other ideas on what could be causing this?

Thanks again!

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