So...... Many Samsung users complain about "Battery Draining Issues" after any android or security updates, I just want to tell you that please try to update all apps from play store after the security and android version updates. Yes....... Many of this is not the solutin..... But that's not true. It will surely help you.
Not only this, you can also use DEVICE CARE of Samsung by enabling sleeping apps.... It will surely boost up your battery by making unnecessary apps to sleep.
Please comment if you also have any type of other solutions.