Abstract: The present invention relates to a method and a device for evaluating the quantity of electrical energy consumed by a communicating object supplied by cell, the communicating object being able to implement a plurality of functionalities, according to the invention: an activation of a functionality of the communicating object is detected (E30), it is checked (E31) in a table whether an electrical-energy consumption is associated with the functionality activated, an estimation of the quantity of electrical energy consumed by the functionality activated if an electrical-energy consumption is associated with the functionality activated is demanded (E32), a measurement is demanded (E35) of the quantity of electrical energy consumed by the functionality activated if an electrical-energy consumption is not associated with the functionality activated.

Abstract: A power supply device comprising a group of at least one power supply cell, means for managing the cell group comprising a passive balancing unit of said cells, the device being wherein, during a request to move into long-duration storage mode of the device, the management means are configured to, via the passive balancing unit, discharge the cell group until the cell group reaches a target charge state or a target charge state range, if a charge state of the cell group is greater than the target charge state or the target charge state range.

Abstract: The invention relates to electronic equipment including at least one housing shaped to receive an external module, the external module having at least one connector for co-operating with at least one complementary connector of the equipment arranged at the end of the housing when the external module is placed in the housing. According to the invention, the device includes isolation means for responding to a contactor being activated by switching off at least an electrical power supply at least for the power supply contacts of the connector of the equipment, the contactor being arranged on the equipment so as to be activated by the external module before the connectors connect together and to be deactivated once the connectors are connected together when the external module is properly in place in the housing.