Samsung has finally responded to the One UI 8 battery draining problem affecting users of Galaxy phones and watches. The company explains why users see a sudden decline in battery life after installing the One UI 8 update.

On September 15, Samsung started the One UI 8 update rollout. Starting with the Galaxy S25 series, the update was gradually expanded to dozens of devices. One UI 8 Watch update is also rolled out to the Watch Ultra and Watch 7.

Galaxy users are complaining about the battery drain problem on community forums and social media. They are asking others if they are also facing the same issue and seeking a fix to improve the battery life declined after the update.

Battery drain complaints

Users are filling the Samsung Community with criticisms about reduced battery life after the One UI 8 update. One of the comments reads, “I wonder if Samsung is unaware of the fast battery drain issue or if they simply have no intention of fixing it.”

One user with a Galaxy S24 posted a question, “The battery is draining fast after the update, is there a solution?” Another user stated, “There’s almost no change compared to the previous version, but the battery drains faster.”

Reddit’s Samsung-related subreddits are also filled with similar complaints. A user named claimed, “I regret the One UI 8 update. When I was using One UI 7, the Screen-On Time (SOT) on my Galaxy S25 was about 7 hours, but now it’s only 5 hours.”

A Galaxy Watch 7 user also left a question: “After the update, if I leave home with a 100% charge and return, the battery only has about 20% left. Previously, it had about 70-80% remaining. Can I downgrade (revert to the previous version)?”

Samsung’s response

Commenting on some complaints, Samsung explained that the cause behind battery drain isn’t just the One UI 8 update. The decline is influenced by various factors, including app updates, different usage environments, and usage patterns.

Samsung recommends users report the problem via the Members app and keep the log file attached. It also sought detailed information to better evaluate what’s wrong with the devices that are ruining the battery life.

Samsung (via Chosun) responded to users, saying:

Battery consumption is complexly influenced by various factors, such as updates to installed apps, changes in the device’s usage environment, or usage patterns.

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