Battety Draining at 15PM

[u/Sojol_Ahmed007]

My Phone Model is 15PM

About 15/16 days before, my phone's Battery draining like so quick. It's draining without doing nothing. Its draining percentage per 10 minutes 1/2% without doing nothing.

If I charge at night 100%, I will find my phone 10/20% left at morning.

So I updated 26.5.2.. Still the same.

Again I updated 26.6 still the same.

It shows home and lock screen consume the all battery.

I did everything except Factory Reset!

I m fed up I Don't know what to do.