Samsung Galaxy S27 Pro and S27 Ultra battery capacities leak | Infinium-tech
A few days ago we heard some new details about the cameras of the Galaxy S27 family, and now the same source is back with information about the devices’ batteries. Well, this is good news.
The Galaxy S27 Pro will reportedly have a battery with a rated capacity of 5,087 mAh, which will probably be advertised as a normal capacity of 5,200 mAh. Considering that this is a small device, this is already quite impressive for Samsung.

Samsung Galaxy S26 Ultra
But wait until you hear about the Galaxy S27 Ultra. It apparently has a battery with a rated capacity of 5,534 mAh, which will probably be advertised as having a normal capacity of 5,700 mAh.
Both of these are larger batteries than the 5,000 mAh cell inside the Galaxy S26 Ultra, and it’s certainly been a long time coming. The higher efficiencies indicate that Samsung is finally adopting silicon carbon anodes, years after Chinese brands first started doing so.
Samsung Galaxy S26 Ultra
Source (in Dutch)

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