Patent ID: 9356452
Filing Date: 2016-05-31
CPC Classification: H02J,Y02E

Claim Text:
1. A method for reducing a total charge loss of battery cells by equalizing states of charge comprising: a) checking boundary conditions as to whether (i) a temperature of at least one balancing unit is below a preselectable temperature limit, and (ii) a charging process of the battery cells has completed and the state of charge (SoC) of the battery cells is greater than 90%, b) determining whether a maximum SoC difference of the battery cells lies above an adjustable limit (DELTA_SoC), c) if steps a) and b) of the method are affirmative, autonomously cell balancing the battery cells by connecting the battery cells to balancing resistances (R wherein d) switching off the at least one balancing unit after expiry of the time period (t