Samsung plans to equip the Galaxy S26 Ultra with a 5,200 mAh battery, a modest increase over the 5,000 mAh of previous models. The leak appeared on the Weibo platform, through the Momentary Digital profile, and indicates launch scheduled for the first quarter of 2026. Essa change occurs after years of stagnation in the energy capacity of the South Korean company’s flagships.
The Galaxy S25 Ultra maintained 5,000 mAh, a standard adopted since the S20
Technology experts note that Chinese competitors, such as Xiaomi and Oppo, already offer batteries above 6,000 mAh in premium devices. The Samsung focuses on balance between size and slim design for the S26 Ultra.
- Main rivals with larger batteries: Xiaomi 14 Ultra (5,300 mAh) and Oppo Find X7 (5,000 mAh with advanced optimizations).
- History of the Samsung: Seis consecutive generations limited to 5,000 mAh in the Ultras.
- User expectations: Maior autonomy to support 6.8-inch screens and high-performance processors.
Charging specs confirmed
The Galaxy S26 Ultra should support 60W wired charging, up from the current 45W. Essa speed allows full recharging in around 60 minutes, according to simulated tests in previous leaks.
Wireless charging also improves to 25 W, compared to 15 W on the S25 Ultra. PPS (Programmable Power Supply) technology guarantees stability, adjusting voltage and current to avoid overheating during the process.
Manufacturers such as Qualcomm, a partner of Samsung, validate that 60 W balances the speed and durability of the lithium-ion battery. The compatible charger must be sold separately, as with recent models.
Comparison with direct competitors
Chinese models dominate the high-capacity battery market. The Vivo X100 Pro, for example, uses 5,400 mAh with silicon-carbon, achieving up to 20 hours of mixed use.
The Samsung prioritizes integration with the Galaxy ecosystem, including software optimization via the One UI 8.
- Advantages of the S26 Ultra: Ergonomic Design and support for 7 years of updates.
- Disadvantages: Capacidade still lower than the 6,000 mAh of rivals like the OnePlus 12.
- Global market: Baterias above 5,000 mAh represent 45% of premium smartphones sold in 2025, according to data from Counterpoint Research.
The Apple, with the iPhone 17 Pro Max, equaled 5,000 mAh last year, forcing the Samsung to respond with the minimum necessary to maintain technical leadership.
Battery history on the Galaxy S line
Since 2020, the Samsung has maintained 5,000 mAh in the Ultras for certification and energy density reasons. The S20 Ultra introduced the standard, prioritizing 108 MP cameras and AMOLED screens.
In 2023, GSMArena tests showed that the S23 Ultra lasted 12 hours of continuous video, similar to the S25 Ultra. The stagnation reflects regulatory challenges in the União Europeia for larger batteries.
Leaks from 2024 suggested a fixed 5,000 mAh for the S26, but the new rumor changes the scenario. Engenheiros from Samsung test prototypes focusing on thermal efficiency.
The Galaxy Z Fold 7, a foldable competitor, already uses an optimized 4,400 mAh, indicating that the company is exploring variations by product line.
Influence of Apple on Samsung’s decisions
The iPhone 17 Pro Max reached 5,000 mAh in 2025, matching the Samsung for the first time. Analistas from IDC points out that 30% of Samsung innovations in the last two years respond to movements from Apple.
Projects like the iPhone Air inspired the S25 Edge, with thin edges and compact batteries. For the S26 Ultra, the answer is an increase of 200 mAh, enough for comparative marketing.
Rivalry drives the sector: flagship sales rose 15% in 2025, driven by specification wars. Samsung plans Unpacked events in January 2026 to reveal the S26.
Expectations for the global launch
The Galaxy S26 Ultra should arrive in February 2026, with prices starting at R$7,999 for the Brasil, similar to the S25. Certificações Anatel and FCC are already circulating in rumors, confirming advanced 5G compatibility.
Pre-sales will focus on packages with covers and fast chargers. Samsung invests in battery recycling, in line with EU sustainability goals for 2030.
Users in Brasil, where mobile data consumption grew 25% in 2025 according to Anatel, await greater autonomy for 5G networks. The S26 Ultra integrates AI for power management, optimizing apps in real time.
The update, although incremental, marks the end of an era of fixed 5,000 mAh. Futuros models can exploit solid-state batteries, tested in Samsung laboratories since 2024.
