Against the backdrop of promoting global energy transition and achieving the “dual carbon” goals, the battery manufacturing Industry, as a crucial supporting industry, requires the coordinated operation of its entire industrial chain and integrated solutions, which are essential for enhancing its competitiveness. This study focuses on enterprises integrating technology, Industry, and trade, delving deeply into the operation mode of the entire battery manufacturing industrial chain. It also emphasises the analysis of turnkey engineering solutions for lead-acid and lithium batteries and strategies for integrating the industrial chain under dual technology approaches. The study proposes an integrated “manufacturing + service” model with technological collaboration and resource optimisation at its core, aiming to coordinate upstream and downstream resources efficiently. The research findings indicate that the operation mode of the entire industrial chain can effectively shorten the project cycles by more than 30%, reduce overall costs, and simultaneously improve product quality and the supply chain’s resilience. In addition, this model promotes the transformation of enterprises from single-product suppliers to comprehensive solution providers, providing a practical path for the intelligent and green development of the Industry and the implementation of global resource integration strategies. This study significantly promotes intensive and high-quality development within the global battery industry.