Samsung Galaxy S27 Ultra and Galaxy S27 Pro battery units appear in South Korea’s Safety Korea certification database, with the listings including images and identifying battery model numbers. The database entries reference certification numbers and link the battery items to production in China, tied to Zhuhai CosMX Power’s Jinwan subsidiary (as described by the sources).

Across the outlets, the coverage focuses on what the battery listings reveal ahead of launch. NDTV and GSMArena both report the battery model numbers for the Pro and Ultra and note matching smartphone model-number associations, while also stating that the batteries are made by Zhuhai CosMX Power in China. GSMArena adds that battery capacities are not legible in the photos. Android Authority frames the development as an early look that continues the paper trail ahead of the phones’ release.