Users of the Samsung Galaxy S24 Ultra report a significant drop in battery life following the installation of the One UI 9 update, which is based on Android 17. One owner noted that their device drained 95% of its battery in just 5 hours and 20 minutes, with only 3 hours and 15 minutes of screen-on time recorded during that period.

The device was operating at QHD resolution while connected to an LTE+ mobile network without Wi-Fi access. The user primarily utilized social media and video streaming applications, such as Instagram, YouTube, and Snapchat, rather than resource-intensive tasks like gaming or video editing. Previously, the device typically provided 6 to 8 hours of screen-on time daily.

Samsung support in India has advised affected users to visit an authorized service center for a physical inspection. Before seeking professional help, the company suggests clearing the system cache, updating all installed applications, and restricting background activity for unused software. Users can also enable the light performance profile.

Additionally, the manufacturer recommends utilizing the Samsung Members application to perform a health check on the battery. The diagnostic tool is located within the app under the battery section. Similar instances of reduced battery performance following major operating system updates have been observed on various other mobile devices.