That is why Chinese brands offer flagship phones with batteries with a capacity of 5500 or 6000 mAh without increasing the thickness or volume of the devices. At the same time, Samsung still uses lithium-ion batteries and cannot yet offer batteries of the same capacity as its competitors.
However, Samsung SDI, Samsung’s battery division, is developing “stacked smartphone batteries that provide 10% higher energy density.” These are batteries manufactured using multilayer stacking technology.
With this technology, Samsung will be able to offer the Galaxy S26 Ultra with a 5,500 mAh battery that takes up the same space as the 5,000 mAh battery found in the Galaxy S24 Ultra.
Source: Ferra
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