Samsung has been leading the way in smartphone advancements, but it has encountered challenges in battery performance. Recent findings indicate that Samsung is making notable efforts to rectify this concern by experimenting with larger batteries for its Galaxy smartphones. A source on X has revealed that Samsung is testing substantial battery sizes, including a 12,000mAh and an 18,000mAh model. However, a 20,000mAh battery is reported to have failed following 960 charging cycles.
These advancements suggest that Samsung is investigating silicon-carbon battery technology, which could be integrated into upcoming Galaxy devices. The 12,000mAh battery is said to employ a “dual stacked cell” configuration, merging a 6,800mAh and a 5,200mAh battery, having a thickness of approximately 9.0mm. This battery is reportedly capable of enduring 1,500 charging cycles before its capacity declines to 80%.
In addition, Samsung is evaluating an 18,000mAh battery featuring a “tri-cell vertical stack,” composed of 6,699mAh, 6,000mAh, and 5,257mAh capacities. This battery thickness is recorded at 12.3mm, which is significant considering Samsung’s inclination towards slimmer devices.
Despite these encouraging advancements, the Galaxy S26 series still incorporates a 5,000mAh battery in the Ultra version, with reduced capacities for the standard and Plus versions. This stands in contrast to rivals like OnePlus, which provide larger batteries paired with quicker charging options.
Samsung’s initiatives to boost battery efficiency are a positive development, as consumers place greater emphasis on battery longevity and charging speed. While the company has progressed in other domains, enhancing battery technology could greatly improve user satisfaction and maintain Samsung’s competitive edge in the smartphone industry.