Battery runs out before reaching 0%

[Chalanthorn Chanmathikornkul]

I was using my phone when it was 30% then suddenly the screen went blank. then I charge my phone it was at 0%. I had perform factory reset. anyway to recalibrate the battery?

 

[Golfdriver97]

I found this, but I have never had to calibrate a battery myself: BU-603: How to Calibrate a “Smart” Battery – Battery University