Our custom battery systems are engineered specifically for marine and underwater equipment. Drawing on decades of experience, we deliver high-reliability AUV batteries, underwater batteries, sea-water battery packs, and ocean battery systems for extended field deployments. Each solution is built to withstand deep-sea conditions — rugged pressure housings, robust connectors and high-capacity cells ensure years of service without maintenance. We specialize in large-format cylindrical packs (even up to 10 ft long) assembled on custom tooling, so we can meet virtually any size or form-factor requirement.