HC2D Oxygen Replacement Fuel Cell

The TC2D Oxygen Fuel Cells are the power source for HydraCell Shark Flashlight and Aqua Pro Flashlight. TC2D HydraCells can be stored sealed, prior to first use, for 25+ years. They are activated to full capacity by simply dipping in water for 15 seconds. Once activated the cells will operate continuously under load, requiring only periodic re-hydration. At the end of the useful lifetime of the cells, they can be easily replaced.