Galaxy S26 Ultra Could Stick to 5,000mAh Battery but Finally Boost Charging Speeds

Highlights

• The Galaxy S26 Ultra is expected to retain the 5,000mAh battery but feature a thinner body than the S25 Ultra’s 8.2mm frame.
• Samsung may finally increase charging speeds beyond 45W, addressing long-standing user requests, though exact figures are still unknown.
• Improvements in battery safety and durability are reportedly in the works.

Samsung may be gearing up for its next foldables, but a new leak is giving us an early peek at what to expect from the upcoming Galaxy S26 Ultra instead. And while there are some improvements to look forward to, not everything is changing. Here’s what we know.

Samsung Galaxy S26 Ultra in Recent Leaks

According to well-known leaker Ice Universe, the Galaxy S26 Ultra will once again feature a 5,000mAh battery. It is the same capacity Samsung has stuck with for years. That’s a bit underwhelming, especially when competitors like OnePlus and Nothing are now pushing beyond that with silicon-carbon batteries.

Some Galaxy fans have been asking Samsung to make the switch, but the company might be playing it safe due to concerns over battery safety, a lingering effect from the Galaxy Note 7 incident nearly a decade ago.

But it’s not all bad news. Ice Universe also mentions that the S26 Ultra will be slimmer than the current S25 Ultra, which has a rather bulky 8.2mm frame. A thinner design, possibly in the 7.xmm range, could make the device feel more refined and easier to hold similar to the sleeker S25 Edge.

Samsung is reportedly also making improvements to battery safety and longevity, which could be tied to another much-requested change, which is faster charging speeds.

While the leak doesn’t give exact numbers, it suggests Samsung is finally moving past the usual 45W charging rate. We don’t yet know how big the jump will be, but many would like to see it match at least the 67W speeds offered by phones like Motorola’s recent flagships.

There’s also the question of how faster charging will impact battery health over time. Users often worry that quicker charging can reduce a battery’s overall lifespan. If Samsung really is increasing the speed while also working on battery safety and durability, it may be trying to find the sweet spot while delivering faster top-ups without sacrificing long-term performance.

So while the Galaxy S26 Ultra might not bring a bigger battery, it could finally offer better charging and a slimmer, more refined design, which would be welcome changes for many fans.

FAQs

Q1. What battery capacity is expected in the Galaxy S26 Ultra?

Answer. According to well-known leaker Ice Universe, the Galaxy S26 Ultra will once again feature a 5,000mAh battery.

Q2. Will the Galaxy S26 Ultra support faster charging?

Answer. While the leak doesn’t give exact numbers, it suggests Samsung is finally moving past the usual 45W charging rate.

Q3. How will the Galaxy S26 Ultra’s design differ from its predecessor?

Answer. Ice Universe also mentions that the S26 Ultra will be slimmer than the current S25 Ultra, which has a rather bulky 8.2mm frame.

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