With its innovative architecture integrating large-capacity mobile energy storage, flexible DC fast charging, and a rechargeable and swappable closed-loop system, the EAX Power On series mobile power replenishment system redefines the boundaries between emergency power supply and off-grid charging. The system features a customizable PCS/DC-DC converter tailored for vehicle-mounted integrated battery packs, and is equipped with an integrated bottom support for charging and swapping. It supports V2G, plug-in charging, and mini-program unlocking. Vehicles can be deployed directly to demand points, operating in complex scenarios such as parks, highway service areas, mining ports, and more—without being constrained by grid capacity. Enabling immediate response, the system serves as a replacement for fixed charging piles, transforming the traditional "car looking for piles" model into "power looking for cars."