How do I know ps4 controller is charging?

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Tags

1. #press
2. #remaining
3. #slowly
4. #battery
5. #approximately
6. #button
7. #complete
8. #charging
9. #takes
10. #turns
11. #light
12. #screen
13. #blinks
14. #appears
15. #while
16. #orange
17. #controller
18. #charge
19. #level
20. #system
21. #hours