Each enclosure houses 3 stacks of GNB 100A39 batteries.  The batteries are used to store the electrical power produced by the solar array.  The enclosures are fitted with the patented passive Convective Hydrogen Vent which eliminates any explosive hydrogen gas produced when the batteries are charged.  The system was designed to provide several days of autonomy without any sun.


Cool Cells must have full view of the night sky to function properly.