What is the capacity of the battery? November 04, 2022 03:41 Updated The earbud has a 36mAh battery and the case has a 350mAh battery. Related articles Does the Ear (stick) support fast charge? What does the colour of the charging case indicator mean? Will my earbuds chage whe the charging case is on low battery? What do firmware updates do? How can I check the battery level?