The Galaxy S10 phones are due to launch soon and they will bring the first major improvement to Samsung’s wireless charging thanks to the Samsung EP-P5200 charger that was certified by the FCC.
The new charger is rated at 12V/2.1A input. For comparison the EP-N5100 takes 9V/1.67A input and outputs 9V/1A – that’s 9W of power and about 60% efficiency. Assuming a similar performance we can expect around 15W of charging power for the new phones (which lines up with the description of “less than or equal” to 15W).
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That’s as fast as the current Samsung Fast Charge, which outputs 9V/1.67A over the wire (15W again). By the looks of it, the Galaxy S10 phones will stick to 15W wired chargers so they will charge equally fast whether you use a wired or wireless charger.
Source | Via