Device for holding a plurality of batteries

The device (1) has a bottom (2) and a peripheral wall defining a housing (4) to receive batteries. An inner wall (10) extends in the housing, and defines a duct (11) for circulation of flow of air. Reception areas of electrical connection units connecting the batteries are arranged in the duct. A gripping unit is secured on the device opposite to the reception areas of the electrical connection units with respect to the housing for receiving the batteries. The bottom and the inner wall have through-holes (35).