An important feature in using a power bank is knowing exactly how much power it holds. Yet, most power banks offer only an imprecise light display. To improve the user experience, the Holo power bank has an LCD screen to indicate, at the touch of a button, precisely how much power remains. When the power bank is not charging, the LCD screen become transparent and functions as a magnifying glass. Completing this innovative design is a soft rubber skin that a joy to hold and touch.