The update to iOS 17.4 is draining some iPhone users’ batteries،
iOS 17.4 will let you make the Stolen Device Protection feature protect you wherever your phone is.
iOS 17.4 lets Stolen Device Protection feature work everywhere
The update also includes 118 new emojis, a few bug fixes, and one very unwanted feature. It seems like iOS 17.4 drains the battery life of some iPhone users. One user posted on social media that their iPhone battery lost 40 percentage points of its life in just two hours. Another iPhone user said his battery lost 13 percentage points of life after writing and posting two tweets about “X.” An iPhone user saw their battery go from 60% to 0% overnight without the phone being used.
Charging the battery also became a problem after installing iOS 17.4. An iPhone 11 Pro owner plugged in their phone with 40% battery. After four hours, the battery was still not fully charged, at 94%.
If your battery is still draining too quickly after updating to iOS 17.4, you can see if these things help
First, force reset your iPhone by turning it off. Press the power button on the side while simultaneously pressing the volume up button. Use the slider to turn off the device. Leave it off for a few minutes, then turn the iPhone back on. You should also make sure that all your apps have been updated. You can do this by opening the App Store and tapping the profile icon in the upper right corner. Tap Update All about three-quarters of the way down the screen and all apps queued for an update will update.
If you go to Settings > Battery you can see which apps are consuming too much battery power. You can always decide to delete these apps if you don't use them. If your battery is still draining too quickly, you can try to extend its life by reducing the brightness of your screen or turning off Always-On by going to Settings > Display and brightnessand disabling the feature.
Hopefully, any changes you need to make to extend your iPhone's battery life will only be temporary and Apple will send out an update to fix the problem.