A modular container is provided having a base. A plurality of panels is coupled to the base to form an enclosure having an internal volume. The plurality of panels substantially defines an outer perimeter, and substantially defines a top circumferential edge of the modular container. At least one door provides access to the internal volume. A roof having a shoebox flange is coupled to the plurality of panels. The shoebox flange circumscribes the roof and defines the outer perimeter of the roof. The shoebox flange fits over the top circumferential edge. The roof comprises a plurality of individual roof panels that are fastenable together. The modular container, when in a disassembled and flat-packed state, fits at least one of horizontally and vertically in an ISO container.

A special container for battery transport is provided. The container includes a container body and a fire extinguishing system. The fire extinguishing system is used for extinguishing a fire in the container. The fire extinguishing system includes a connection device and a firefighting pipeline. The firefighting pipeline conveys a fire extinguishing agent into each container body and discharges the fire extinguishing agent from the container body. An end of the connection device is fixedly connected to a container body wall of the container body. The connection device communicates the firefighting pipeline between two vertically adjacent container bodies.