iPad Pro battery drain issue after iPadOS 18.4 update

MarvinFortyTwo wrote:

Update: I downloaded and tested DuckDuckGo browser and the battery drain immediately stopped. So it is definitely a bug in Safari and its power management.

Since it seems confined to your 2 devices, I would try closing all tabs in Safari and also turn off Safari at Settings > [name on top] > iCloud, in case there is something that is having trouble syncing with iCloud. Compare your results and turn back on. If your 2 iPads are using the same Apple Account, then any problem with syncing specific data from iCloud would be the same on both devices.

But then we are left with the question of why your two iPad Pro M4s show that problem running Safari under 18.4 when other samples of the same model (such as mine) do not.

If your iPad Pro is experiencing battery drain after the iPadOS 17.4 update, start by checking Settings > Battery to see which apps are using the most power.

A simple restart can help clear any background bugs from the update. Disable Background App Refresh and Location Services for non-essential apps in Settings, and turn off Analytics & Improvements under Privacy.

Also, make sure all your apps are updated from the App Store, as outdated apps can cause power issues.

If the battery continues to drain quickly, you can try resetting system settings by going to Settings > General > Transfer or Reset iPad > Reset > Reset All Settings—this won’t delete your data but can clear out problematic configurations