A battery signalling system is provided which can be used to monitor and/or control a battery (1) having a number of series connected battery cells (Ci). When used to monitor the battery cells, the battery signalling system can comprise a central battery monitoring system (3) for monitoring the industrial...http://www.google.fr/patents/US6404166?utm_source=gb-gplus-shareBrevet US6404166 - Signalling system