This advanced training course provides marine electricians, surveyors, and knowledgeable boat owners with the skills to design, install, and assess marine lithium-ion battery systems safely and in compliance with international standards. It covers system design principles, protection and control, BMS operation, thermal runaway and fire risk mitigation, installation and commissioning requirements, and regulatory compliance across ISO, IEC, ABYC, and classification society standards. Learners complete structured video lessons, technical references, and assessments leading to certification, enabling them to evaluate and implement safe, compliant lithium systems on yachts, superyachts, and commercial vessels.