New Leak Claims Galaxy S26 Ultra Will Finally Get a Bigger Battery
Rumors surrounding the Samsung Galaxy S26 Ultra continue to heat up as another major leak from China has surfaced—this time focusing on its battery capacity. For months, tech insiders have debated whether Samsung will finally increase the battery size in its most premium flagship. While earlier reports were conflicting, the newest leak provides a clearer direction and suggests a meaningful improvement compared to recent models.
The Samsung Galaxy Ultra lineup has remained stuck at 5,000 mAh for multiple generations, including the S22 Ultra, S23 Ultra, S24 Ultra, and the most recent S25 Ultra. Because of this, many users have been eagerly waiting for Samsung to enhance battery life, especially as displays, camera sensors, and AI features continue to demand more power. The latest leak now claims Samsung may finally be making that move.
Galaxy S26 Ultra May Feature a 5,200 mAh Battery
The newest information coming out of China states that the Galaxy S26 Ultra will be equipped with a 5,200 mAh battery. Although not a massive upgrade, even a 200 mAh increase can improve overall endurance—especially when paired with Samsung’s battery optimization, adaptive refresh rates, and next-gen power-efficient chipsets.
This report contradicts an earlier Chinese certification that listed the S26 Ultra with a 4,855 mAh rated capacity, which typically corresponds to a 5,000 mAh typical capacity, the same as the S25 Ultra. That created confusion among fans and analysts, with some believing Samsung would simply recycle the existing battery size.
However, a fresh 5,200 mAh claim suggests Samsung may have updated its prototype or moved forward with a slightly larger power cell. It is also possible that multiple sample units exist, and the final battery may only be confirmed once mass production begins.
Despite the uncertainty, one thing is clear: Samsung is testing options, likely due to shifting competition. Other brands like Xiaomi, Vivo, and OnePlus are pushing larger batteries and faster charging, something Samsung has been more conservative about.
Improved Charging: 60W Wired + 25W Wireless Expected
Battery size isn’t the only upgrade rumored for the Galaxy S26 Ultra. Earlier leaks hinted at a significant improvement in fast charging technology. If reports are accurate, the S26 Ultra may support:
- 60W wired charging
- 25W wireless charging
This is a noticeable upgrade from the 45W wired and 15W wireless charging currently available on the S25 Ultra. While Samsung still won’t match the extremely fast charging speeds seen in Chinese smartphones (100W, 120W, and beyond), a jump to 60W would still be a welcome improvement for many users.
The decision likely reflects Samsung’s cautious approach toward battery health, heat management, and long-term durability. Faster charging requires advanced thermal engineering, and Samsung has historically prioritized safety standards and long lifespan over extreme charging speeds.
If the S26 Ultra truly brings 60W charging, users can expect faster top-ups, improved efficiency, and reduced charging times, especially when using official Samsung chargers.
Why Samsung Might Finally Increase Battery Capacity
The Galaxy S26 Ultra is expected to come with several next-generation features, and each one requires more energy. These may include:
- A more powerful AI-optimized chipset
- Brighter and more advanced AMOLED display
- New camera sensors with enhanced night and zoom capabilities
- Expanded Galaxy AI features
- Improved 5G and satellite connectivity
As features grow, so does power consumption. To keep the Galaxy S26 Ultra competitive—and to avoid negative feedback like “poor battery life” or “fast drain”—an upgrade to 5,200 mAh makes sense.
Additionally, rivals are pushing boundaries. The Vivo X100 Ultra, Xiaomi 15 Ultra, and upcoming OnePlus flagships are all rumored to include large batteries and extremely fast charging. Samsung cannot afford to fall behind, especially when premium users expect long-lasting performance.
Another factor is battery efficiency improvements. With optimized software and more efficient chipsets, even a small increase in battery size can deliver noticeably better screen-on time.
Conflicting Leaks Make the Battery Story Interesting
One of the reasons the Galaxy S26 Ultra battery leak is gaining traction is because multiple sources disagree. This rarely happens unless Samsung is actively testing different modules.
Here’s what we currently know:
- August certification: 4,855 mAh rated → likely 5,000 mAh
- New Chinese leak: 5,200 mAh typical capacity
- Industry analysts: Mixed opinions, expect Samsung to increase at least slightly
This suggests Samsung may have initially planned a smaller battery but later tested a slightly larger design. Battery suppliers often send multiple prototypes, and Samsung performs durability, temperature, performance, and charging safety tests before finalizing the module.
Such conflicting information will continue until the device enters final certification stages, where official documents begin appearing in global databases like 3C, FCC, or UL Demko.
What Happens Next?
Since the Galaxy S26 Ultra launch is still several months away, more details should surface as production gets closer. The next major leaks will likely come from:
- Certification listings (battery, charging, network, safety)
- Geekbench and performance benchmarks
- Prototype images
- Camera and chipset specification leaks
As these details arrive, the battery information will become clearer. For now, the latest 5,200 mAh leak is the most optimistic clue that Samsung is finally ready to break its 5,000 mAh tradition on the Ultra series.
Regardless of the final capacity, the Galaxy S26 Ultra is shaping up to be one of Samsung’s most important flagship releases, especially with the company focusing heavily on AI, camera upgrades, and design refinements.
