Electric boats have been used for some time on interior waterways, where local regulations may prohibit the use of internal combustion craft as too polluting. There has been recent growth in this category thanks to significant reduction in battery weight and recharge time.
The silent operation and absence of exhaust gas in electric boats make for an agreeable outing. They are particularly well-suited to low-speed fishing.
The system is composed of an energy storage component, an energy conversion unit and a motor. A bank of batteries provides storage. Recent improvement in lithium-ion, nickel-cadmium and nickel-metal-hydride technology allows for a greater concentration of energy in lighter batteries.
Electric motors fall into two main categories: direct and alternating current. The type of converter depends on the motor type. A direct-direct current converter provides continuous DC power. An inverter changes DC to AC power.
