Samsung’s flagship Galaxy Ultra series has long been known for its standard 5,000 mAh battery capacity. However, recent leaks suggest the tech giant is preparing to surpass this limit. The new Galaxy S26 Ultra battery capacity could meet one of users’ biggest expectations.
How Will the Galaxy S26 Ultra Battery Capacity Increase?
According to leaked information, Samsung is making a significant innovation in battery technology. They plan to integrate ‘stacked’ battery technology, also used in electric vehicles, into their smartphones. This technology allows for increased capacity by fitting more energy density into the same physical space. This will make it possible to achieve higher mAh values without increasing the phone’s size.

Furthermore, it’s rumored that this new battery technology will not only increase capacity but also offer faster charging support. The stacked structure can dissipate heat more efficiently, safely enabling higher charging speeds such as 65W.
The first model indicated by the leaks is the Samsung Galaxy S26 Ultra. If the claims prove true, the new flagship, set to be introduced in early 2026, could be the first Ultra model to break the 5,000 mAh barrier. This development would give Samsung a significant advantage over its competitors.
Higher battery capacity will offer users a much longer battery life, especially during heavy use, gaming, or high-resolution video recording. This would further strengthen the Galaxy Ultra series’ claim to be the ‘best’.
So, what are your thoughts on the battery improvements in Samsung Galaxy Ultra models? Share your opinions with us in the comments!

