The cooling batteries in the BRG series are designed for the disposal of the heat generated in closed circuit cooling systems in different productive applications. They work with minimum energy consumption and without water. The design includes a thermal exchange battery and a complete hydraulic circuit with control board, axial fans, and pump. The batteries can be used to cool water or water and glycol mixture by a simple thermal exchange in the counter current with ambient air. Also, by replacing open circuit systems, they can be used for cooling hydraulic system oil. This reduces obstruction risk and the need for frequent maintenance. During periods requiring cooling, the BRG batteries can be used to save up to 70% energy when substituting traditional coolers.