The Galaxy S25 Edge battery showed higher energy density than that of the S25 Ultra
By ForGeeks The Galaxy S25 Edge battery has a higher energy density compared to the Galaxy S25 Ultra’s battery despite having a smaller capacity.
Criticism of Samsung for the Galaxy S25 Edge’s supposedly “cut-rate” 3,900 mAh battery proved premature. Despite the device’s slimmer body and smaller battery compared to the flagship S25 Ultra, the smartphone uses a battery with improved performance inside.
The Galaxy S25 Edge’s 3,900 mAh battery is the same as the flagship S25 Ultra.
Disassembly reveals Edge has higher energy density
A video unboxing posted by YouTube channel WekiHome has revealed that the Galaxy S25 Edge’s battery has an energy density of 758Wh/L. That’s higher than the Galaxy S25 Ultra’s 5,000 mAh battery, which has a density of 727Wh/L. Thus, Samsung has managed to optimize the space inside the Edge model’s case, improving the efficiency of battery placement.
The smartphone industry particularly values the combination of compactness and long battery life, and in this context, Samsung’s choice of a higher density battery looks justified. According to WekiHome, the company’s engineers have improved the battery’s performance while maintaining the ultra-slim profile of the device.
Why they didn’t use more advanced batteries
In comparison, the OPPO Find N5 uses a battery with a silicon carbon anode and has achieved a density of 810Wh/L. This was reported by insider Ice Universe. If Samsung had used the same technology in the Galaxy S25 Edge, the battery capacity would have risen to just 4,200 mAh – a gain that would have been insignificant in the face of the risks involved.
After the Galaxy Note 7 battery fire incident, Samsung has taken a conservative approach to battery selection. The Galaxy S25 Edge features a traditional lithium-ion battery. This decision is due to a desire to avoid the risks associated with silicon-carbon battery technology, which is not yet fully understood.
After the Galaxy Note 7 battery fire incident, Samsung is taking a conservative approach to battery selection.
Ice Universe: Samsung did the right thing
A well-known critic of Samsung, insider Ice Universe, said that in this case, the accusations against the South Korean brand are unfair. According to him, the idea that Chinese brands could build a 6,000 mAh battery into such a thin body is nothing more than a fantasy. He also noted that Samsung has demonstrated sound engineering by choosing a safe and balanced solution.
So despite its smaller nominal capacity, the Galaxy S25 Edge’s battery was technically more advanced than the larger model, and may be the basis for further capacity increases in future generations of devices.
The Galaxy S25 Edge’s battery has been shown to be technically superior to the larger model, and may be the basis for further capacity increases in future generations of devices.
The Galaxy S25 Edge battery shows higher energy density than the S25 Ultra was first published on ITZine.ru.
