My Galaxy S9+ which is 14 months old is exhibiting a strange behavior. The phone works perfectly through the entire 15-100% range but when it falls below 15% it starts to act weird and drops about 1-2% every second. I mean to say that one moment it shows 15% and within a couple of seconds it will drop to 1%.
Is anyone facing the same issue? Please advise whether I should have the battery replaced. I am only worried about my water resistance since i had lost it on my Galaxy S7 edge after a screen replacement through an official Samsung repair centre.
I faced that issue after last security patch update..so I went to Samsung service center and flash last same firmware from them .now my battery is perfect
this happens when the phone has not gone below certain level for a long time.. for a few times let the battery drain fully to zero and only then charge your phone.. gradually the problem will be solved.. you must be always charging your phone when it reached 15%.. let it drain fully and only then charge..
