| 主权项 |
1. A battery balancing device arranged to perform balance processing of charge states of a plurality of batteries, where the batteries are adapted to be connected in parallel and where the balancing device is adapted to disconnect the batteries from each other and from external loads before a balancing status is determined, wherein each of the batteries is divided into a plurality of battery cells and wherein at least one equalization device is arranged in each battery for balancing the battery cells within the battery, wherein the balancing device being arranged to at least collect information about voltage of at least one battery cell in each battery from the at least one equalization device and determining the balancing status of the batteries on the basis of the collected Information, the balancing device further being arranged to determine a target cell voltage for at least one battery cell in dependency of the balancing status and provide the target cell voltage to each equalization device to control the balancing of the battery cells, where the balancing device is arranged to discharge and/or charge the batteries to achieve the same or a similar charge state for the batteries when the balance process is completed. |
