Samsung has faced criticism for its Galaxy S25 Edge’s battery capacity, but recent findings suggest that the phone actually beats the Galaxy S25 Ultra’s battery in an important way. A teardown video of the Galaxy S25 Edge revealed a battery energy density of 758Wh/L, which is higher than the Galaxy S25 Ultra’s 727Wh/L at 5,000mAh.
In contrast, the OPPO Find N5 uses a Silicon Carbon anode battery with a density of 810Wh/L. However, if Samsung used this technology in its Edge model, the capacity would be slightly lower due to design constraints.
After the Galaxy Note 7 battery fire fiasco, Samsung has prioritized caution when it comes to batteries and related risks. As such, it opted for conventional Lithium Ion batteries over Silicon Carbon.
Tipster Ice Universe believes that people are unfairly blaming Samsung for this decision. They argue that Chinese brands could not have achieved a similarly thin phone with a 6,000mAh battery. This indicates that Samsung’s approach was sound and might lead to higher capacity in future devices.
Source: https://www.sammobile.com/news/galaxy-s25-edge-battery-density-higher-s25-ultra