Caroute N300-24V 160LB Brushless Electric Boat Trolling Motor Large Thrust Saltwater (160 Pound, 42" Shaft) More powerful large thrust brushless electric motor suitable for boats to 3.0 tons Higher efficiency, achieve 65% efficiency, 30-60% higher than brushed motors and 100-200% higher than gasoline engine Much quieter than same power gasoline engine and half to one third the weight. Motor Controller protects motor, battery and user: Low-Voltage protection, overheating protection, stall protection, sudden start protection, and reverse polarity protection. Rugged engineering, sealed motor, galvanic design, sacrificial anode for trouble-free saltwater operation