Bow thruster brushless 57 kgfThrust force extended runtime. The increasing popularity of environmentally friendly boats with 48 volt electric propulsion required the development of thrusters running at the same voltage and this BOWPRO364 is designed to meet that need.BOWPRO364 48 V thruster offers all the advantages of the standard BOW PRO and is more than powerful enough to turn your runabout in the desired direction.Recommended battery size for this BOW PRO is slightly larger than advised then for conventional DC thrusters to take full advantage of the motor efficiencies and resulting long run-times of this thruster.