While the battery capacity stays the same for a sixth generation, Samsung may finally increase charging speed to 60W in the S26 Ultra.
Battery Size: Still Stuck at 5,000mAh
According to reliable tipster IceUniverse, the upcoming Galaxy S26 Ultra will once again feature a 5,000mAh battery — the same capacity Samsung has used since the Galaxy S20 Ultra.
- This means six consecutive Galaxy Ultra models will share identical battery size.
- For power users hoping for a larger cell (5,500mAh+), this may come as a disappointment, especially as rivals push past those numbers.
Why No Battery Boost?
Samsung appears to be playing it safe in terms of battery capacity, likely due to:
- Thermal limitations and the desire to keep the device thin and light
- The need to accommodate components like advanced cameras, cooling systems, and the S Pen
- Safety concerns, stemming from lessons learned after the Galaxy Note 7
Instead of expanding the mAh count, Samsung continues to rely on:
- Chipset efficiency (Snapdragon 8 Elite, built on 3nm)
- AI-powered battery management in One UI
- Software optimization to squeeze more endurance from the same hardware
Fast Charging Finally Gets an Upgrade?
The bright side: Samsung is finally moving beyond its long-standing 45W charging limit.
- The Galaxy S26 Ultra is rumored to support 60W fast charging, marking the fastest charging speed ever on a Samsung phone.
- While this doesn’t match the 80–120W speeds of some Chinese flagships, it’s a welcome leap for Galaxy fans.
The decision to keep the battery size static while boosting charge speed appears intentional:
- A faster refill compensates for the lack of capacity growth.
- It balances battery longevity, thermal control, and practical usability.
Why 60W Makes Sense
Boosting both battery size and speed may not deliver tangible benefits in real-world usage.
- A 5,500mAh battery with 60W+ charging could cause more heat and battery degradation over time.
- Instead, Samsung seems to be opting for moderate fast charging paired with consistent long-term reliability.
What’s Next?
The Galaxy S26 series is expected to launch in February 2026, keeping in line with Samsung’s traditional release window.
- As development continues, some hardware decisions may change.
- But for now, the battery capacity appears final, while charging upgrades are more likely than ever.
Final Thoughts
Samsung’s strategy with the Galaxy S26 Ultra suggests incremental refinement over radical change.
- Users looking for faster top-ups will appreciate the jump to 60W, but those hoping for larger battery reserves may have to wait another year.
- Ultimately, the device’s real-world endurance will come down to software efficiency and smart battery usage, not just raw specs.
