In fact, these types of batteries hurt from low voltage problems, so it's actually better to incompletely charging them (say, from 20 percent to 90 percent) than to fully charge and fully drain them.
Few suggestions to extend your smart phone battery life.
1. Black wallpaper can save battery
2. Use dark themes and settings
3. Don't use adaptive/auto brightness
4. A shorter screen timeout setting saves battery
5. Your phone doesn't have to be smart all the time
7. Use lock screen notifications
8. Only use original batteries
9. Set your 'Do Not Disturb' or 'sleep' schedule
10. You don't need to be connected 24/7
11. Don't get bogged down by widgets
12. Don't let your apps fall behind the times
13. Explore the battery saving features on your phone
14. Use your basic battery saving mode
15. Don't fall into the auto-sync trap
16. Manually update apps when it's convenient for you
17. Turn off Google hot words
18. Don't be so mobile obsessed