The HydraCell UT-AP Utility Accessory Pack is a revolutionary compact DC powerpack utilizing our proprietary HydraCell fuel cell. Three 2.6 mm ports provide power for small DC accessory lights & devices away from wired electrical grids. The replaceable HydraCell fuel cells can be stored prior to first use for 25+ years and is activated instantly to full capacity simply by dipping in water. Once activated the cell will operate continuously under load, requiring only periodic re-hydration. After 300+ hours, depending on load & usage, an inexpensive new or refurbished HydraCell fuel cell immediately restores the Accessory Pack to a like-new condition.