Color-Changing Icon Battery Cup

This innovative battery icon mug features a heat-sensitive design that changes appearance when filled with hot liquid. The black ceramic mug displays a battery icon that transforms from empty to fully charged (green bars) when hot beverages are added. Key features: • Heat-sensitive color changing design • Battery level indicator graphic • Black ceramic construction • Changes from empty to full battery when hot • Returns to original state when cool • Stylish modern aesthetic • Perfect for tech enthusiasts The mug uses thermochromic technology to create the color-changing effect. When empty or filled with cold liquids, the mug shows an empty battery icon outline. Adding hot liquid causes the battery indicator to 'fill up' with green bars, creating a fun interactive experience while enjoying your favorite hot beverages. The mug returns to its original state as the drink cools down.