S21 Ultra 5G

[mrskadavan889]

I am using 45 W charger to my brand new S21 Ultra 5G, how it will affect its battery?

[SHINAN-EpFBz]

fast charging may affect your battery health and produces heat

[TMan296]

The 'Fast Charging' picture is the one where I plugged in thr 45W charger and the 'Super Fast Charging' picture I plugged in the 25W charger on my S21 Ultra.

That's because the S21 Ultra has been designed to charge efficiently only using the 25W charger.

[Mafrek]

I would say if u using the 45w battrey mess with bixby routine specially while sleeping to stop and close the fast charging or if u want put battery saver which let phone stays at 85% it will help dramatically