The HydraCell Power Cube packs a powerful punch that can generate up to 6 full phone charges. It will power the optional LED Panel Light for 100’s of hours of area lighting well after it has already charged 6 phones. The HydraCell Fuel Cell is at the heart of the HydraCell product line. Containing a proprietary membrane cathode, electronics and patented design that improves application performance. The HydraCell can be stored for 25+ years prior to activation. It is activated instantly to full capacity simply by dipping in water. Once activated, the cell will operate continuously, requiring only periodic re-hydration. After 200+ hours depending on the load & usage.