10 Fixes to Overheating and Battery Drain After XOS 15 Android 15 Update

If your Infinix smartphone is experiencing overheating and excessive battery drain after updating to XOS 15 Android 15, you’re not alone. Many smartphone users experience battery issues after major updates due to system configuration, background processes, etc.

Shortly after Infinix rolled out the XOS 15 update to the NOTE 40 series, some users came up with a series of complaints about the new OS, although most of them vanished after a few days.

However, the battery drain issue can be quite annoying. So in this article, I have written a complete guide to fix the XOS 15 battery drain issues on your Infinix smartphone.

NOTE: Mind you, the steps in this article can be used to fix any Android smartphone experiencing the same issue after the Android 15 upgrade.

Table of Contents

Why Is My Battery Draining Fast After Updating to XOS 15?
10 Proven Fixes for Battery Drain on XOS 15 and Android 15

Why Is My Battery Draining Fast After Updating to XOS 15?

There are many reasons why your Infinix smartphone is experiencing battery drain after the Android 15 upgrade. Some of the most common reasons include:

Background app activity and sync
System re-indexing after update
High screen refresh rates and brightness
Misbehaving apps not optimized for Android 15
Battery calibration needs resetting

10 Proven Fixes for Battery Drain on XOS 15 and Android 15

1. Auto-index and Calibration

After a major OS upgrade, it’s normal for your battery to behave unpredictably for the first few days. During this period, your device is busy reindexing data, optimizing apps in the background, and recalibrating the battery to align with the new system.

There’s no action needed on your part — simply allow the phone to run as usual, and it should stabilize on its own. For most users, performance and battery life begin to normalize within a week. Just be patient, and you’ll likely notice a marked improvement.

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2. Reboot Your Device

After updating to XOS 15, reboot your smartphone to stabilize system performance. This will help to prevent some background processes from draining your battery.

3. Recalibrate Your Battery

Use your battery until it drains down to 0% and goes off.
Now charge and do not power it on until it gets to 100%.
Once fully charged, power your device and then reboot.

This process helps your Android system to relearn your battery’s full capacity.

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4. Optimize Power-Hungry Apps

Infinix Smartphone overheating and Battery Draining Fast

Some apps aren’t yet optimized for XOS 15 or Android 15, thus your battery drain.

Go to your phone’s Settings
Locate Battery and then check Battery Usage
Now identify the apps with the most consuming power and then update them in the Play Store.
If the problem persist, tap on High-usage apps and choose “Restrict” or “Optimize“.

5. Clear Cache and Unnecessary Data

Major updates such as Infinix XOS 15 can create background clutter (cache) on your phone.

Go to your phone’s Settings
Locate Storage and then Cached Data
Now clear it.

Alternatively, you can use the Phone Master or XOS Cleaner app to clear the leftover cache.

6. Lower Screen Brightness & Refresh Rate

Go to your phone’s Settings
Locate Display & Brightness and then Refresh Rate
Set it to Standard (60Hz)
For the screen brightness, set it to Auto.

7. Adaptive Features:

Enable the below Adaptive features.

Go to your phone’s Settings
Locate Battery, Adaptive Battery and then enable it. (non-infinix users)
Go to Display, Adaptive Battery and then enable it.

8. Enable Power Saving or Ultra Power Mode

Infinix XOS 15 comes with built-in modes:

Go to your phone’s Settings
Locate Battery Lab, and Power Boost.
Enable Power Saving or Ultra Power Saving Mode when low.

9. Reset App Preferences

Just in case things get buggy, do the following:

Go to your phone’s Settings
Locate System, and Reset Options.
Now click on Reset App Preferences

10. Factory Reset (Last Option)

When nothing seems to work, this final option is the only thing left on the table.

First backup your data
Go to your phone’s Settings
Locate System, and Reset
Now click on Erase all data (factory reset)

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