Leak
5 publications · October 23, 2026
Galaxy S27 Pro and S27 Ultra batteries appear in Safety Korea database with photos
Key points
- Batteries for the Galaxy S27 Pro and Galaxy S27 Ultra have appeared in the Safety Korea certification database, with photos.
- The S27 Pro battery has model number EB-BS957CBY. The S27 Ultra battery has model number EB-BS958DBY.
- The model numbers match the phones' own model numbers, SM-S957 for the S27 Pro and SM-S958 for the S27 Ultra.
- Both batteries are made by Zhuhai CosMX Power in China.
- The battery capacities are not legible in the certification photos.
- Samsung is expected to launch the Galaxy S27 series early next year.
Summary
(AI)
This is a certification listing, not a Samsung announcement. Samsung has not confirmed any specifications. The listing shows the batteries have cleared a safety check, and it gives a first look at the cells themselves.
Capacities could not be read from the photos. GSMArena says the figures were already known from earlier reports, and PhoneArena says the Ultra’s would be the largest battery in any Galaxy S Ultra phone. Neither excerpt gives the figures, so treat them as unconfirmed until they are published.
The phones have been through several certification stages already. The battery listing comes ahead of the expected launch early next year.
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