Samsung Galaxy S26 series rumored to feature silicon-carbon batteries which could increase capacity by 10-15%, potentially allowing Samsung Galaxy S26 Ultra to have a battery of up to 5,750mAh. The Samsung Galaxy S25 series is expected to launch soon with no major battery size improvements, making the wait for the Galaxy S26 series enticing for those seeking larger batteries. Reports suggest that the Galaxy S26 series will adopt silicon-carbon batteries similar to phones like OnePlus 13 and Xiaomi 15 Pro, offering higher energy density in a similar space. While actual battery capacities for the Samsung Galaxy S26 series are not confirmed, it is speculated that the Galaxy S26 Ultra could have a battery capacity of up to 5,750mAh. These potential upgrades could result in significantly longer battery life for the upcoming Samsung smartphones. However, it’s important to note that these are just rumors, and further details will be revealed upon the launch of the Samsung Galaxy S25 series on January 22.