- The Samsung Galaxy S26 series could use silicon-carbon batteries
- It should allow for a capacity increase of 10-15%
- The Samsung Galaxy S26 Ultra could then have a battery of up to around 5,750mAh
The Samsung Galaxy S25 series is almost here, but reports suggest that their batteries won’t be bigger than last year’s phones. So if you’re hoping for improved battery life, you might want to wait for the Samsung Galaxy S26 series, which could have much bigger batteries.
According to @Jukanlosreve – citing delicious @UniverseIce – the Samsung Galaxy S26 series will use silicon-carbon batteries. This type of battery has only recently started to find its way into phones, where e.g. OnePlus 13, Honor Magic 7 Pro and Xiaomi 15 Pro already have silicon-carbon batteries.
These three phones have much larger batteries than most handsets, at 6,000 mAh, 5,850 mAh and 6,100 mAh respectively, and that’s no coincidence as this type of battery allows for around 10-15% higher energy density, so a higher capacity battery can take up just as much.
Update: The S26 will use a silicon-carbon battery. Source: Ice Universe, Undead Weibo. https://t.co/6KBDQlNvFW16 January 2025
Up to around 5,750 mAh
The source does not say what capacity we can expect from the batteries in the Samsung Galaxy S26 series, but for reference, the Samsung Galaxy S24 has a 4,000 mAh battery, the Samsung Galaxy S24 Plus has a 4,900 mAh, and the Samsung Galaxy S24 Ultra has a 5,000 mAh battery. We expect the same from the Samsung Galaxy S25 series.
So assuming a 10-15% increase, we might be looking at somewhere between 4,400 mAh and 4,600 mAh for the Samsung Galaxy S26, between 5,390 mAh and 5,635 mAh for the Galaxy S26 Plus, and between 5,500 mAh and 5,750 mAh for the Samsung Galaxy S26 Ultrasound.
Those are big enough increases that these phones can last significantly longer between charges than current Galaxy S models, so if battery life is a priority for you, they might be worth the wait.
Of course, this is just a rumor for now, and a very early one, so even if the source is reputable, we wouldn’t count on it happening.
Plus, while rumors suggest that the battery capacity of the Samsung Galaxy S25 series won’t be higher than that of the S24 series, we won’t know for sure until those phones launch on January 22nd. And even if there is no change in capacity, they can still offer improved lifespan through software optimizations.
So you might not actually have to wait until 2026 for a longer-lasting Samsung smartphone, but in any case, we’ll have a clearer idea soon.
