Bettery level would be indicated by light colors of power button:
- When bettery level is higher than 20%, the power button will remain green constantly.
- When bettery level is lower than 20%, the power button will remain yellow constantly.
- When bettery level is lower than 10%, the power button will remain red constantly.
Bettery level is also displayed in the top-left corner of the "Live Preview" page in Pi SOLO APP. It is also showed in the settings page.