Architectures are widely used in applications that require high output power density, with their primary function being to achieve balanced power sharing among multiple modules. Conventional current-sharing control strategies are unable to maintain balanced regulation of the battery state of charge (SOC), which consequently reduces the overall service life of the battery. To address the aforementioned issue, this paper proposes a multi-loop power control method based on the battery SOC. By incorporating a power loop linked to the battery SOC, the proposed approach facilitates dynamic regulation of the charging and discharging processes of each module, thereby preventing premature module shutdown due to overcharging or over-discharging and enhancing the overall energy transfer efficiency of the system. Furthermore, under heavy-load operating conditions, a power output limiting mechanism is implemented to ensure robust self-current-sharing capability, thereby further improving the overall stability of the system. Finally, the validity and feasibility of the proposed approach are verified through simulation studies.