Fujikura Composites Inc. (TYO:5121), formerly known as Fujikura Rubber Ltd., is set to launch its Aqua Charge series of small magnesium–air batteries for residential use on May 29. These have been designed as a smaller version of the company’s existing WattSatt series of magnesium–air batteries for emergency power storage. WattSatt products have been receiving positive feedback from companies and government…