Battery container and energy storage system including the same

An energy storage system, comprising:

• a first battery container, the first battery container comprising:
• a bottom wall, a top wall and a plurality of side walls extending between the top wall and the bottom wall;
• a first coupling at a corner of the bottom wall;
• and
• at least one first load supporter at an edge of the bottom wall and spaced between two corners of the bottom wall;
• a second battery container, the second battery container comprising:
• a bottom wall, a top wall and a plurality of side walls extending between the top wall and the bottom wall;
• a second coupling at a corner of the top wall;
• and
• at least one second load supporter at an edge of the top wall and spaced between two corners of the top wall;
• wherein each first coupling of the first battery container is connected to a respective second coupling of the second battery container, and
• wherein the at least one first load supporter is connected to the at least one second load supporter.