Samsung's Future Flagships: The Promise of Stacked Battery Technology in the Galaxy S26 Ultra

The Galaxy S24 Ultra. | Image Credit - PhoneArenaA new report reveals that Samsung is working on innovative stacked battery technology, which could pave the way for the Galaxy S26 Ultra to feature a robust 5,500mAh battery while maintaining a sleek form factor. The forthcoming Galaxy S25 Ultra is expected to stick with the standard 5,000mAh battery that has characterized Ultra models for many years. Meanwhile, competitors from China have been making headlines with significantly larger battery capacities in their premium devices, with advancements in silicon carbide (SiC) batteries. Flagship models like the Honor Magic 7 Pro, OnePlus 13, and Oppo Find X8 Pro have all gone beyond the 5,500mAh mark, leaving Samsung at a battery capacity disadvantage with the Galaxy S24 Ultra and the anticipated S25 Ultra. The promising stacking technique, combined with SiC technology, could provide a 10% increase in energy density. However, due to high production costs, it is likely that Samsung will reserve this innovation for its flagship models, meaning we shouldn't expect to see it in mid-range offerings like the Galaxy A series anytime soon. Notably, Apple's recent iPhone 15 series already incorporates stacked battery technology, showcasing its viability in the market. It's important to note that battery life extends beyond mere capacity; factors such as processor optimization, thermal management, and software play essential roles. For instance, the Galaxy S24 Ultra has outperformed the iPhone 15 Pro Max in two-thirds of battery life assessments, particularly excelling in web browsing and gaming scenarios, even extending battery longevity in 3D gaming by nearly two hours.