A glowing, futuristic energy cell floating in mid-air, in a sleek, transparent cylindrical casing. Neon blue and green light pulses from within, radiating a vibrant, high-tech look. Metallic components wrap intricately around the core, with small conduits emitting faint sparks of energy. The design is streamlined, with translucent tubes showing energy flow inside. Soft light glows around it, giving a powerful, radiant effect. The cell appears to hold immense power, suited for a sci-fi setting.