Midpoint conductance technology used in telecommunication stationary standby battery applications

This paper discusses the effectiveness of midpoint conductance monitoring on 48 V valve-regulated Pb-acid battery strings using a midpoint conductance transducer (MCT). Data from laboratory and MCT field installations is presented. The MCT accuracy in a stand-alone application, as well as with a remote monitoring system application, is examined. Results indicate that, in each configuration tested, midpoint conductance monitoring was effective in identifying capacity string failures.