RELAY CONTROL SYSTEM AND BATTERY SYSTEM

The present disclosure refers to a relay control system (10) for a battery system (100) comprising an electrical interface (20) to which a connector (22) is detachably connectable, a power supply (60) electrically connected in parallel to a coil (32) of a relay (30) through power supply lines (PL1; PL2), a relay driver switch (40) interconnected between the power supply (60) and the coil (32) in one of the power supply lines (PL1, PL2), a controller (50) electrically connected in parallel to the relay driver switch (40) through relay driver control lines (RL1; RL2) to control the relay driver switch (40). One among the power supply lines (PL1; PL2) and the relay driver control lines (RL1; RL2) is routed across the interface (20), such that the one among the power supply lines (PL1; PL2) and the relay driver control lines (RL1; RL2) is electrically conductive across the interface (20)i, when the connector (22) is connected to the interface (20), and is electrically interrupted across the interface (20), when the connector (22) is detached from the interface (20); and wherein the relay control system (10) is configured to open the relay (30), when the one among the power supply lines (PL1; PL2) and the relay driver control lines (RL1; RL2) is interrupted in response to the connector (22) being detached from the interface (20).