Embodiments of the disclosure provide an adaptable energy storage container that is interoperable with a plurality of battery types. For example, the disclosure provides an adaptable energy storage container design and method of use that is readily interoperable, e.g. physically and electrically, with a variety of battery types. The container and other components can be assembled into an energy storage platform. For example, the container can substantially enclose a plurality of battery strings within the platform. A central, internal gangway can provide fast access to battery modules and other components within the container. The strings of batteries, each comprising a plurality of battery modules, can be disposed within the container, substantially parallel to each other, and on either side of the central, internal gangway. The battery strings and battery modules therein can be accessed by the gangway through a door at an end of the container.