Battery drainage issue in Windows 10 can be fixed by these 7 easy methods.
Method #1: 0m5s
Turn on battery saver. Click on notifications icon on the bottom right. Turn on Battery saver icon.
Method #2: 0m18s
Turn off background apps. Go to All SettingsPrivacyBackground apps. You can turn off all background apps, since you can open them manually!
Method #3: 0m53s
Turn off bluetooth! Bluetooth consumes a lot of energy! Turn it on only when you need it!
Method #4: 1m7s