Recently, a leak surfaced in a tweet revealing details about the battery capacity of Samsung’s upcoming flagship phone, the Galaxy S25 Ultra, slated for release next year. According to the tweet from @Sawyergalox, the Galaxy S25 Ultra will retain the same 5,000mAh battery capacity as its predecessor, the S24 Ultra, and will support 45W fast charging. Initially, there were plans to incorporate stacked batteries to enhance battery life and enable faster 65W charging, but Samsung has reportedly postponed this upgrade until 2026 with the Galaxy S26 Ultra.
Despite the disappointment over the unchanged battery capacity, another tipster named PandaFlash, via Wfcctech, shared insights from an unnamed source regarding a new feature called “Battery AI” that Samsung is purportedly working on. This feature is expected to increase the phone’s runtime by 5% to 10%.
While existing software solutions extend battery life by throttling the CPU/GPU or reducing the capabilities of the 5G modem, the exact workings of “Battery AI” remain undisclosed. PandaFlash speculates that the feature may function by shutting down unnecessary background tasks that consume system resources.
Although it’s unclear whether “Battery AI” will debut with the Galaxy S25 series, given that most of PandaFlash’s posts are related to the 2025 flagship line, it’s reasonable to assume that the feature will launch alongside the Galaxy S25, S25+, and S25 Ultra next year. Given Samsung’s introduction of Galaxy AI with this year’s flagship series, integrating “Battery AI” into the Galaxy S25 line would align with their ongoing innovation efforts. The feature is expected to be compatible with the Snapdragon 8 Gen 4 and Exynos 2500 processors powering the 2025 models.
If Samsung indeed introduces this feature, it could potentially divert attention from criticism regarding the stagnant 5,000mAh battery capacity of the Galaxy S25 Ultra, which has remained unchanged since the release of the Galaxy S21 in 2021.
