Abstract: A power control system for controlling a power circuit of an electric marine propulsion system delivers power from at least one marine battery to a marine drive configured to propel a marine vessel. The power control system includes at least one interlock circuit electrically isolated from the power circuit. The interlock circuit includes a plurality of interlock circuit portions, each interlock circuit portion configured to indicate connectivity of a corresponding portion of the power circuit, a plurality of resistance elements each having a predetermined resistance value, including a resistance element associated with each of the interlock circuit portions, and a control system.

Abstract: A vessel power system configured for a marine vessel includes a rectifier configured to receive an AC power input from a shore power source and provide a DC charging output to charge a battery and an active phase circuit configured to provide a regulated AC output to power onboard AC loads on the marine vessel. The active phase circuit is connected to the output of the rectifier and includes a return connection configured to form a return path for electric current from the onboard AC loads and configured such that the rectifier and the active phase circuit are configured to split the AC power input from the shore power source into the DC charging output to charge the battery and the regulated AC output to power the onboard AC loads.