3C has reportedly issued its approval for a new battery called the EB-BM415ABY. Nothing very unusual about that - except that it has a rated capacity of no less than 6800mAh. Its model number also suggests it may be destined for a Samsung phone, even though the Chinese telecomms regulator lists its manufacturer as Ningde Amperex Technology.
A second new certification from Safety Korea bearing the same model number includes a photo that suggests the EB-BM415ABY is indeed a Samsung product. This image does not adequately confirm the object's apparent rated capacity, however, although other information found in the Korean documentation matches that from 3C.
Therefore, it is indeed possible that the OEM is now ready to provide a new and improved generation of the battery found in devices such as the Galaxy M30s, which had impressively long screen-on times as a selling point.
In addition, Samsung may in fact market its apparent successor as having 7000mAh in typical capacity. This could make it the largest singular battery in the industry, whereas other OEMs such as Realme may have only just cracked 6000mAh in their own latest rounds of product development.
As to the phone to be graced with this new rumored super-battery, it could be the Galaxy M41, going by the model number included in these new leaks and Samsung's usual practice of matching these identifiers to those of phones. However, it is also possible that an M51 could be the one to turn up rocking this spec instead.