# One UI 9 is draining some Galaxy S24 and S25 batteries

Source: https://idevice.com/one-ui-9-is-draining-some-galaxy-s24-and-s25-batteries
Published: 2026-10-24

> If your S24 or S25 is dying faster since One UI 9, a restart is the first fix to try. Samsung hasn't explained the drain yet.

Samsung's One UI 9 update, built on Android 17, is leaving some Galaxy S24 and S25 owners with much worse battery life, [9to5Google reported](https://9to5google.com/2026/10/22/samsung-galaxy-s24-battery-life-one-ui-9/). [One Galaxy S24 Ultra owner on X](https://www.androidauthority.com/samsung-galaxy-s24-s25-one-ui-9-battery-drain-3727166/) saw the battery drop 95% in 3 hours and 15 minutes of screen time, and Samsung contacted them to book a service appointment at a nearby store. A Galaxy S25 owner says they now have to “charge my phone 3 to 4 times a day.” Others on Reddit describe the phone draining while it just sits idle.

The complaints so far come from a small number of owners on X, Reddit and Samsung's community forum. Samsung hasn't said what's causing the drain. If your battery got worse after updating, restart the phone first. A factory reset is the bigger step, so back up your data before you try it.

## Sources

- [9to5Google](https://9to5google.com/2026/10/22/samsung-galaxy-s24-battery-life-one-ui-9/) (9to5Google)
- [Android Authority](https://www.androidauthority.com/samsung-galaxy-s24-s25-one-ui-9-battery-drain-3727166/) (Android Authority)