South 8 and Arctic Research and Development Expand Extreme Cold Battery Partnership with New Letter of Intent

South 8 Technologies, a U.S. manufacturer of lithium-ion battery cells for extreme environments, has signed a Letter of Intent (LOI) with Arctic Research and Development (ARD), a UK-based developer of communications and autonomous systems for extreme cold environments with a focus on developments for Northern Europe and the Arctic. The agreement supports future supply of South 8’s ARCTIC™ AE35 18650 cells for BB-2590 battery systems and establishes a framework for broader collaboration on extreme cold applications.