Boat maneuvering system

A boat maneuvering system for maneuvering a boat, comprising:

• a first power source and a second power source mountable on a body of the boat;
• a first operating device configured to operate the first power source and the second power source;
• a first controller, including a first central processing unit (CPU), configured to control the first power source;
• a second controller, including a second CPU, configured to control the second power source;
• a third controller, including a third CPU, configured to accept an operation instruction input from the first operating device and to output control signals to the first controller and the second controller;
• a first electric power line that connects the first power source to a first battery to convey electric power therebetween;
• a second electric power line that connects the second power source to a second battery to convey electric power therebetween;
• a third electric power line that connects the third controller to a third battery to convey electric power therebetween;
• a first communication path that connects the first controller and the third controller to convey a signal therebetween;
• a second communication path that connects the second controller and the third controller to convey a signal therebetween;
• a first signal converter provided on the first communication path to electrically separate the first and third controllers;
• and
• a second signal converter provided on the second communication path to electrically separate the second and third controllers.