What Is Draining My Note 9 Battery. After 9 months that is around 135 cycles out of 1000 a normal lithium battery can take. Open the Settings app from your app drawer expand the Device section and then tap the Battery option.

Apps are draining battery on Galaxy phone or tablet. I just got the Samsung Ultra note 20 and it really does have a draining issue with the battery I had to throw mine and 60 hurts and turn on the battery saving mode just to be able to make it through the day and sometimes I dont even do that and Ive only had it for about 3 days what sad is Im a big-time no fan and when I have my note 9 I didnt have any issues whatsoever but I ended up. After 2 years you will get around 14 hours.
Perhaps my solution will resolve your battery drainage.
Open the Settings app from your app drawer expand the Device section and then tap the Battery option. Most Smartphones have a lithium-ion battery that lives longer when charged regularly. My note 9 has been charged once every 2 days. Clear Cache from Settings.
