It’s not just you: Galaxy S24 and S25 owners report excess battery drain after One UI 9

TL;DR Some Galaxy S24 users are reportedly facing a significant dip in battery life after the recent One UI 9 update. Multiple Galaxy S25 owners are also reporting similar problems after Samsung’s Android 17-based update. Samsung recently started rolling out the One UI 9 update to the Galaxy S25 and Galaxy S24 series, introducing features like Call Brief and My FanCam.