The Classic OCSM range is an enhanced development of the OPzS series which uses the CSM (Copper Streched Metal) patent, developed by HAGEN Batterie AG in 1978. This patent, originally created and implemented for submarine batteries, has been successfully adapted for stationary applications where remarkable energy transformations or short-term discharges are required.
In addition to the positive tubular plates providing extreme stability and robustness, the unique feature of the OCSM range is the use of a copper stretch mesh as the core of the negative electrode. The higher conductivity of copper leads to a lower internal resistance and provides a much better performance during the discharge and charge of the battery. The main applications of OCSM batteries are power plants (approved for use in nuclear power plants) and load levelling.