This study presents a comprehensive review of innovative power management strategies in electro-mechanical systems, with a focus on enhancing energy efficiency and extending system longevity. The research encompasses a systematic literature review, analyzing studies from 2007 to 2023, to explore the evolution, current trends, and future prospects in the field. Key areas of investigation include the historical development of power management technologies, current advancements in energy-efficient systems, and the integration of novel approaches for system longevity. The study also examines the environmental and economic impacts of these innovations, the role of policy and industry standards, and the implications for various stakeholders. Significant findings reveal that advancements in nano-mechanical energy harvesting, bio-electro-Fenton systems, and smart power management technologies are driving the field towards greater sustainability and efficiency. The research highlights the critical role of stakeholder engagement and policy in facilitating the adoption of these technologies. Future trends indicate a shift towards more integrated and intelligent power management solutions, particularly in sectors like aeronautics and renewable energy. Strategic recommendations are provided for industry practitioners and policymakers, emphasizing the need for embracing technological innovations, investing in research and development, and creating supportive regulatory frameworks. The study concludes with suggestions for future research, particularly in assessing the long-term socio-economic impacts of power management technologies and exploring their scalability and societal acceptance. This study offers valuable insights and a roadmap for stakeholders in the field of electro-mechanical systems, highlighting the importance of innovative power management in achieving sustainable and efficient energy solutions.
 Keywords: Power Management, Electro-Mechanical Systems, Energy Efficiency, System Longevity.