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Summary
- Galaxy device owners are reporting poor battery life after updating to One UI 7.
- They are noticing high power consumption, leading to shorter runtime on a full charge.
- A factory reset seems to have resolved the issue for some users.
Looking past the delays, One UI 7 is a major update for Samsung’s devices. It brings much more than the changes that Google introduced in Android 15, with features like live notifications, Now Bar on the lock screen, and smoother system animations. Despite an extended beta testing, Samsung seems to have failed to squash all the bugs in its latest Android skin. In recent weeks, many Galaxy S and Galaxy Z flagship users who updated their devices to the stable build have been complaining about poor battery life.

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Samsung has paid attention to the little things
Samsung’s support forums (2) and sub-reddits of Galaxy devices are filled with user complaints about poor battery life after installing One UI 7. One Galaxy Z Fold 6 user on Reddit notes that they now end the day with just 20%-25% battery, down from 45-50% before upgrading. Other Fold 6 users have also chimed in, echoing the same concern.
There are similar reports from Galaxy S24 users who are frustrated with the poor battery life on One UI 7.
Some users suggest clearing the app cache from recovery mode and waiting 14 days to let One UI 7 learn your usage pattern. It’s common for Android devices to consume a bit more power after a major OS upgrade, as they optimize everything in the background.
However, battery life should return to normal after a few days. So, if you have only updated your Galaxy phone to Android 15-based One UI 7 in the last few days, wait at least a week.
Try a factory reset as a last resort
If that doesn’t help or you’re fed up with your Galaxy phone’s poor battery life on One UI 7, consider performing a factory reset and setting it up from scratch. While tedious, this trick appears to have worked for some people, but the reports are sporadic, so your mileage may vary.
Considering that One UI 7 is a big revamp of Samsung’s Android skin, there’s always a possibility that a few bugs might have inadvertently slipped past the company’s testing, leading to excessive power consumption. Hopefully, Samsung will address any such underlying issues in the stable One UI 7 firmware with the May 2025 update for its devices.
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