There is considerable debate about the S26 Ultra’s battery capacity. Some sources claim Samsung will use advanced silicon-carbon battery technology, allowing capacities up to 7,000 mAh. However, a well-known tipster insists that Samsung’s testing lab has a maximum capacity of 5,500 mAh. If true, this contradicts earlier reports and could disappoint users expecting a bigger battery. With modern smartphones requiring more power for AI-driven features, high refresh-rate displays, and powerful chipsets, battery life is a key factor. Samsung needs to balance battery size with energy efficiency to meet user expectations.