Samsung Fast Charging only is fast during stand-by.

[MarcusNow]

Hello.

I noticed that some Samsung phones slow down charging significantly when charging while the screen is on, even when the phone is not hot.

My power outlet measurement device indicates 16W for charging during stand by and 6W (yes, this is no typo) while the screen is on, even if the device is cold and nothing is being touched (i.e. watching a video).

Am I doing anything wrong? Why does charging slow down? And how do I keep charging fast while using the device?

 

[bobandar]

Hello.

I noticed that some Samsung phones slow down charging significantly when charging while the screen is on, even when the phone is not hot.

My power outlet measurement device indicates 16W for charging during stand by and 6W (yes, this is no typo) while the screen is on, even if the device is cold and nothing is being touched (i.e. watching a video).

Am I doing anything wrong? Why does charging slow down? And how do I keep charging fast while using the device?

That is totally normal with all the users. Standby charging will always be faster on samsung phones and charging while using the device will slow down the charging process. I know of other smartphones which does not slow down the charging process while using it so cant do much here.