A METHOD FOR EVALUATING A STATE OF CHARGE OF A RECHARGEABLE BATTERY

A method for evaluating a state of charge of a rechargeable battery of an electrical system. The electrical system includes one primary power source and a rechargeable battery as a secondary power source, a DC/DC converter and an electrical network comprising a primary electrical network that connects the primary power source to the DC/DC converter and a secondary electrical network that connects the rechargeable battery to at least the DC/DC converter. The DC/DC converter converts an input DC voltage supplied by the at least one primary power source into an output DC voltage supplied to the secondary electrical network. The at least one primary power source and the rechargeable battery are connected in parallel to at least one electrical load and are configured to supply, via the electrical network, DC voltage and DC current to the electrical load.