GSMArena reports Galaxy S27 Ultra and S27 Pro batteries pictured in Safety Korea listing

GSMArena reports that batteries for the Samsung Galaxy S27 Pro and Galaxy S27 Ultra have appeared in the Safety Korea database with photos. The outlet says the batteries carry model numbers EB-BS957CBY and EB-BS958DBY, matching the S27 Pro's SM-S957 and S27 Ultra's SM-S958 model numbers, and are made by Zhuhai CosMX Power in China. GSMArena notes that the capacities are not legible in the photos.

According to GSMArena, earlier leaks and China's 3C certification indicate a rated capacity of 5,534 mAh for the S27 Ultra, possibly translating to 5,700 mAh typical, and 5,087 mAh for the S27 Pro, possibly 5,200 mAh typical. The outlet also reports that both phones are certified for 60W wired charging. These figures are presented as reported or leaked rather than official Samsung confirmation.

GSMArena says it is still unclear when the S27 series will launch, though a recent report suggested Samsung may return to its usual January/February timeframe. No official announcement, market availability, or final specifications were stated in the source.