Samsung Galaxy S26 Ultra Battery Capacity Tipped to Be Less Than 6,000mAh

Samsung Galaxy S26 Ultra has been tipped to use silicon-carbon batteries.

Written by Sucharita Ganguly, Edited by Siddharth Suvarna | Updated: 13 February 2025 14:34 IST

Samsung Galaxy S26 Ultra Battery Capacity Tipped to Be Less Than 6,000mAh

Photo Credit: Samsung

Samsung Galaxy S26 Ultra is expected to succeed the Galaxy S25 Ultra (pictured)

Highlights

Samsung Galaxy S25 Ultra could get an Exynos 2600 SoC
It may get a 200-megapixel periscope telephoto camera
The Galaxy S25 Ultra will likely sport an Under-Display Camera (UDC)

Samsung Galaxy S26 Ultra is expected to arrive as a successor to the Galaxy S25 Ultra, which was launched earlier this year alongside the Galaxy S25 and Galaxy S25+. Details about the purported Galaxy S26 series handset have surfaced online over the past few weeks. The expected chipset and camera specifications of the Ultra smartphone have also leaked. The Galaxy S26 Ultra has been tipped to pack a silicon-carbon battery. Now, a tipster has weighed in on the likely battery size that the phone may house.

Samsung Galaxy S26 Ultra Battery Details (Expected)

Samsung is tipped to pack a smaller-than-expected battery in the Galaxy S26 Ultra, according to an X post by tipster PandaFlash (@PandaFlashPro). The handset may house a battery with a capacity less than 6,000mAh. To show confidence in this information, the tipster added that he would delete his Twitter (now X) account if the phone gets a 7,000mAh or even a 6,000mAh battery. He claimed in another post that the internal Samsung Test Lab suggests that the Galaxy S26 Ultra will carry a battery with a capacity of 5,396mAh.

Even it's not complete 5500mAh it's like 5396mAh.
— PandaFlash 𝕏 (@PandaFlashPro) February 11, 2025

Previous leaks suggested that the Samsung Galaxy S26 series, including the Ultra variant, is likely to use silicon-carbon batteries instead of lithium-ion batteries. These are expected to increase the energy density of a cell by 10 percent and are said to be safer as well as more environmentally friendly. The tipster did not specify if the Galaxy S26 Ultra will use silicon-carbon or lithium-ion cells.

Notably, the current Samsung Galaxy S25 Ultra carries a 5,000mAh battery, similar to the preceding Galaxy S24 Ultra.

Samsung Galaxy S26 Series Tipped to Use Silicon-Carbon Batteries

Samsung Galaxy S26 Ultra Other Features (Expected)

The Samsung Galaxy S26 Ultra alongside the Galaxy S26+ and Galaxy S26 are tipped to use Exynos chipsets, possibly the Exynos 2600. The Ultra variant may also get an Under Display Camera (UDC), similar to the inner screen selfie cameras found on the Galaxy Z Fold smartphones.

Another report claimed that the Samsung Galaxy S26 Ultra could sport a 200-megapixel periscope telephoto camera with a 1/1.5-inch sensor. The existing Galaxy S25 Ultra has a 50-megapixel telephoto shooter with 5x optical zoom and OIS support as well as a 10-megapixel telephoto camera with 3x optical zoom.

Samsung Galaxy S25 Ultra

REVIEW
KEY SPECS
NEWS

Design
Display
Software
Performance
Battery Life
Camera
Value for Money

Good
New design is for the better
Cameras deliver consistent performance
Good battery life
Excellent performance
Smooth UI

Bad
S-Pen is a downgrade
No Dolby Vision support
Low light camera performance is lacking
Slow charging

Read detailed Samsung Galaxy S25 Ultra review

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Further reading: Samsung Galaxy S26 Ultra, Samsung Galaxy S26 Ultra features, Samsung Galaxy S26, Samsung Galaxy S26 series, Samsung

Sucharita Ganguly

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Sucharita is a writer with Gadgets 360 and is mostly found playing with her cat in her free time. She has previously worked at breaking news desks across organizations. Powered by coffee, The Beatles, Bowie, and her... more »