Ultralife’s SWE (SouthWest Electronic Energy Group) brand manufactures SeaSafe® Smart Subsea Battery Modules. They are designed to be autonomous (self-sufficient), easy-to-use battery system building blocks specifically developed for subsea vehicles, oceanographic systems, and deep-sea oil and gas infrastructure. Most modules consist of pressure tolerant, high performance Li-Polymer cells, a Battery Management System (BMS) with patented safety protection and current path boosters, a thermally potted enclosure, and connectors for power and communications. The modules have a proven record of delivering longer life and longer missions than lead acid batteries.