
What you need to know
- A report on X claims that Samsung has started testing extremely large batteries for Galaxy phones.
- The tipster's report clocked a 12,000mAh battery and an 18,000mAh battery, though there was one at 20,000mAh that failed at 960 charging cycles.
- Rumors last year said Samsung might have 6,000mAh to 7,000mAh ready for its 2026 phones, but that is not the case, as the S26 Ultra still sees a 5,000mAh battery.