Our test results of nickel-cadmium FKM mock-up batteries with metal-felt nickel-oxide electrodes are presented. The discharge characteristics of the tested mock-up batteries with nickel-oxide electrodes made on the carbon-graphite felt basis are shown to exceed virtually all relevant requirements of Russian Railway Industry Standards. The high cyclability of these batteries was established: reduction of the discharge capacity lower than the nominal value was observed after 3100 cycles.
