A method for operating a battery having a plurality of battery cells includes determining when certain end of life criteria for the battery are met. A counter is incremented when the certain end of life criteria are met. The battery is rebalanced when it is determined that the end of life criteria are...http://www.google.co.uk/patents/US7573241?utm_source=gb-gplus-sharePatent US7573241 - Vehicle having a battery with multiple cells and method for operating such a battery
