Samsung Galaxy Phones Suffer 95% Battery Drain After One UI 9 Update
Updated
Updated · Tech Advisor · Nov 2
Samsung Galaxy Phones Suffer 95% Battery Drain After One UI 9 Update
3 articles · Updated · Tech Advisor · Nov 2
Summary
A Galaxy S24 Ultra user reported losing 95% battery in just over five hours after installing One UI 9, with the screen on for only 3 hours 15 minutes.
Similar complaints have appeared from Galaxy S25 owners and across Samsung's support forum, where one user said the phone now needs charging three to four times a day.
The issue does not appear universal: many users report no battery deterioration, and Samsung has not publicly confirmed any broader fault tied to the Android 17-based update.
A temporary post-update drain is possible while apps and system data reprocess in the background; users are advised to restart, check battery-hungry apps, and factory-reset if problems persist.