Samsung Galaxy S26 could get a significant battery upgrade

Although the Galaxy S25 product line has just been launched not long ago, rumors about the next generation Galaxy S26 have begun to appear and receive attention from the smartphone enthusiast community.

For years, Samsung has stuck to the traditional battery capacity of its smartphones across all segments, usually ranging from 4,000 mAh to 5,000 mAh. Even with its flagship Galaxy S25 Ultra, the South Korean manufacturer stuck to a “safe” 5,000 mAh battery. However, it looks like next year’s Galaxy S26 series will see a significant increase in battery capacity, thanks to a new technology that Samsung is expected to introduce soon.

According to FNNews, Samsung is working on introducing silicon carbon technology, which allows for the application of larger capacity batteries in smartphones. This means that the Samsung Galaxy S26 series could be equipped with a battery with a capacity of 6,000-7,000mAh. Basically, silicon carbon batteries are compact and allow for higher energy storage efficiency.

While the technology may be new to Samsung, in fact, several Chinese OEMs like Xiaomi, VIVO, and ZTE have started using silicon carbon batteries in their smartphones over the past few years. These devices feature 6,000-7,000 mAh batteries with fast charging speeds of 80W to 100W – quite impressive performance.

Samsung currently does not support 80W or 100W fast charging on its flagship devices. However, insider sources suggest that Samsung Electronics is likely to increase the battery capacity inside its next-generation phones.

" If silicon anode material is used, the capacity will increase, but there is a problem with the lifespan, so there is a need for improvement. This has not been confirmed yet, but we are studying various improvement measures ," a Samsung representative said in a press release.

Samsung has taken a cautious approach to increasing battery capacity, especially since it manufactures smartphones at a much larger scale. Ensuring product stability is a top priority, as the company wants to avoid a “disaster” situation like the previous Galaxy Note7.

This wouldn’t be the first time a Samsung phone has a 6,000-7,000 mAh battery. Galaxy M and F series models, such as the Galaxy M51, are known for their very large batteries. However, if Samsung uses a silicon carbon battery, the Galaxy S26 would become the company’s first flagship phone with such a high-capacity battery.