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Five smartphones—Nexus 5T, Mi 6, Galaxy S8, G5S Plus, and Pixel 2—are lined up horizontally on a flat surface, each connected to a charging cable. Their screens display a circular charging animation with a percentage that increases over time, showing the battery level rising from approximately 20% to 90% and then rapidly dropping back to around 15%, simulating a full charge cycle followed by a discharge. The phones are labeled above their screens, and the background is a plain, light-colored surface.