Accumulator battery container with plate insertion system, and plate inserting method

An accumulator battery container, constituted by a box-like structure that comprises internally at least one containment cell (5) for at least one plate (6), the cells (5) being formed between opposite walls (3) or between opposite walls (3) and partitions (4) of the container (1), and comprises adaptable guides (2,7) for inserting and fixing in position the at least one plate (6), the guides (2,7) being arranged at opposite ends of the cell (5) and being formed so that they can undergo elastic deformation gradually when the at least one plate (6) is inserted between them by pushing.