Both the Galaxy S20 and S21 featured 4,000mAh batteries, but the S22 saw a concerning reduction to 3,700mAh. The S23 partially addressed this issue by increasing the capacity to 3,900mAh, and the S24 finally brought it back to 4,000mAh. Now, it appears the S25 will maintain this 4,000mAh capacity.
While a 4,000mAh battery is reasonable, it’s essential to consider the increasing demands placed on smartphone batteries. With processors becoming more powerful, displays getting brighter, and features like high refresh rates contributing to higher power consumption, the demand on batteries is higher than ever. The upcoming Snapdragon 8 Gen 4 chip, for instance, is said to have high power demands, with performance reportedly clocking at over 4GHz. Samsung will use an exclusive “Made for Galaxy” version of this chip in their upcoming S-series phone, which will have even higher clock speeds and require more power.
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Therefore, a 4,000mAh battery might struggle to provide sufficient power to run the chip at its best. In contrast, there are rumors that Chinese brands are opting for larger 6,000mAh batteries in their Snapdragon 8 Gen 4-powered flagships.
While the latest details of the Galaxy S25’s battery align with previous reports suggesting no improvements in battery capacity, it’s also suggested that the phone might have better battery life thanks to AI advancements. The S25 will reportedly feature an AI-powered battery-saving mode designed to eliminate unnecessary background processes that drain system resources, thereby increasing battery life.
It’s important to remember that these are just leaks, and Samsung’s final specifications could differ. However, the growing number of leaks indicating no change in battery capacity seems to solidify this expectation.
