More Galaxy S26 Ultra Battery and Charging Details Leak

Samsung’s Galaxy S26 Ultra may bring some key changes to how it handles power. Renowned leaker Ice Universe recently confirmed several notable battery and charging details for the upcoming flagship. While the numbers may not indicate a radical upgrade, the story under the surface is far more interesting.

Galaxy S26 Ultra may not hit 65W charging

According to the leaker, the Galaxy S26 Ultra will feature a 5,000mAh battery, the same capacity Samsung has used since the S20 Ultra. While it will finally offer a noticeable improvement in charging speed, the rumored jump to 65W speed may not materialize. Instead, we may get 60W wired charging, which is still a notable upgrade over the 45W speed Ultra flagships have been charging at since 2020.

This isn’t the complete story, though. Ice Universe insists the Galaxy S26 Ultra will feature “faster full-bodied batteries,” and more intriguingly, “new battery solutions and new charging solutions.” It looks like Samsung may be implementing a more advanced battery structure or new materials that allow faster power delivery, better thermal control, and longer life — even if the capacity itself remains at 5,000mAh.

The term “full-bodied batteries” hints at improved internal cell design, possibly with better energy density or charge acceptance. Samsung is still refraining from increasing the battery capacity for some petty reasons, though. The 5,000mAh limitation isn’t about engineering or safety, but about cost and logistics, the leaker says.

Ice Universe claims that it’s not the battery technology that’s holding Samsung (and others like Apple and Google) back, but the “additional cost brought by air transport regulations.” Lithium batteries above a certain size or density can require special packaging and certification when shipped by air, adding significant overhead, especially for a company like Samsung that ships millions of units worldwide.

This regulatory pressure means that phone makers often choose to cap battery capacity at a level that keeps costs manageable and logistics streamlined. As such, Samsung is relying on other changes to enhance the battery life of its phones. With 60W fast charging and an all-new internal power architecture, the Galaxy S26 Ultra may address some of its biggest long-standing criticisms.