Method for balancing the voltages of electrochemical cells arranged in a plurality of parallel arms

The method involves calculating a difference between lowest and highest voltages. Electrical energy discharge or transfer devices connected across terminals of a branch (Ba) including an electrochemical cell (E1a) with the lowest voltage are activated if the difference exceeds a preset threshold value while simultaneously deactivating the devices connected across the terminals of the branch that does not include an electrochemical cell with the lowest voltage. The devices are deactivated if the difference is less than another preset threshold value that is less than the former value. The electrical energy discharge devices are resistors (Rb), and the transfer devices are selected from inductive winding units and capacitors. Independent claims are also included for the following: (1) a battery (2) a computer program product comprising a set of instructions to perform a method for balancing a battery (3) a computer-readable medium comprising a set of instructions to perform a method for balancing a battery.