portable power bank 3d model

**Prompt:** “Create a photorealistic 3D product render of a premium portable power bank with a slim, rounded rectangular body, matte graphite aluminum finish, and subtle textured grip. Include two USB-C ports, a discreet power button, and a small LED display showing ‘85%’. Show the power bank from a three-quarter angle to highlight its thickness, precise edges, and realistic materials. Minimalist industrial design, soft studio lighting, natural shadows, clean light-gray background, sharp focus, high-resolution commercial product visualization. No logos, no watermark.”