how to know when elf bar is charged

Elf bar charge levels can be checked by looking at the indicator light on the Elf bar itself. The light will be a solid green when the battery is fully charged, and will turn orange when it's close to running out of charge. If the light is blinking red, it means that the battery is nearly dead. Additionally, some Elf bars have a built-in battery meter that displays the battery level as a percentage.